HL7 Terminology (THO)
6.3.0 - UTG Consensus Review Change Request UP-676
HL7 Terminology (THO)
6.3.0 - UTG Consensus Review Change Request UP-676
HL7 Terminology (THO), published by HL7 International - Vocabulary Work Group. This guide is not an authorized publication; it is the continuous build for version 6.3.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/UTG/ and changes regularly. See the Directory of published versions
| Active as of 2026-02-17 | Maturity Level: 5 |
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<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: ValueSet statistic-type</b></p><a name="statistic-type"> </a><a name="hcstatistic-type"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Last updated: 2024-04-24 00:00:00+0000</p><p style="margin-bottom: 0px">Profile: <a href="http://hl7.org/fhir/R5/shareablevalueset.html">Shareable ValueSet</a></p></div><ul><li>Include these codes as defined in <a href="http://tx.fhir.org/r5"><code>https://fevir.net/sevco</code></a><span title="Version is explicitly stated to be 2.0"> version 📍2.0</span><table class="none"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td><td><b>Definition (core metadata concept)</b></td><td><b>Synonym (core metadata concept)</b></td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000668">STATO:0000668</a></td><td>absolute value</td><td>A statistic that represents the distance of a value from zero.</td><td>A statistic that represents the distance of a value from zero.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000047">STATO:0000047</a></td><td>count</td><td>A statistic that represents the number of instances or occurrences of something.</td><td>A statistic that represents the number of instances or occurrences of something.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000669">STATO:0000669</a></td><td>sum</td><td>A statistic that represents the result of adding all the values in a collection of values.</td><td>A statistic that represents the result of adding all the values in a collection of values.</td><td>total</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000151">STATO:0000151</a></td><td>maximum observed value</td><td>A statistic that represents the largest non-null value in a collection of values that can be ordered by magnitude.</td><td>A statistic that represents the largest non-null value in a collection of values that can be ordered by magnitude.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000150">STATO:0000150</a></td><td>minimum observed value</td><td>A statistic that represents the smallest non-null value in a collection of values that can be ordered by magnitude.</td><td>A statistic that represents the smallest non-null value in a collection of values that can be ordered by magnitude.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000666">STATO:0000666</a></td><td>maximum possible value</td><td>A statistic that represents the largest value that could occur.</td><td>A statistic that represents the largest value that could occur.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000667">STATO:0000667</a></td><td>minimum possible value</td><td>A statistic that represents the smallest value that could occur.</td><td>A statistic that represents the smallest value that could occur.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000291">STATO:0000291</a></td><td>quantile</td><td>A statistic that represents the value for which the number of data points at or below it constitutes a specific portion of the total number of data points.</td><td>A statistic that represents the value for which the number of data points at or below it constitutes a specific portion of the total number of data points.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000613">STATO:0000613</a></td><td>difference</td><td>A statistic that is a subtraction of one quantity from another.</td><td>A statistic that is a subtraction of one quantity from another.</td><td>delta</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000573">STATO:0000573</a></td><td>mean</td><td>A measure of central tendency calculated as the sum of a set of values divided by the number of values in the set.</td><td>A measure of central tendency calculated as the sum of a set of values divided by the number of values in the set.</td><td>statistical mean</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000664">STATO:0000664</a></td><td>mean of differences</td><td>A mean of values in which each value is the subtraction of one quantity from another.</td><td>A mean of values in which each value is the subtraction of one quantity from another.</td><td>average difference</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000658">STATO:0000658</a></td><td>mean time-to-event</td><td>A mean of values in which each value is the duration of time between the start of observation and the occurrence of an event.</td><td>A mean of values in which each value is the duration of time between the start of observation and the occurrence of an event.</td><td>mean TTE</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000396">STATO:0000396</a></td><td>geometric mean</td><td>A measure of central tendency calculated as the nth root of the product of all of the observations in a data set (n being the number of all observations).</td><td>A measure of central tendency calculated as the nth root of the product of all of the observations in a data set (n being the number of all observations).</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000574">STATO:0000574</a></td><td>median</td><td>A measure of central tendency equal to the middle value (or mean of the two middle values) of a set of ordered data.</td><td>A measure of central tendency equal to the middle value (or mean of the two middle values) of a set of ordered data.</td><td>middle value</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000659">STATO:0000659</a></td><td>median time-to-event</td><td>A median of values in which each value is the duration of time between the start of observation and the occurrence of an event.</td><td>A median of values in which each value is the duration of time between the start of observation and the occurrence of an event.</td><td>median TTE</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000033">STATO:0000033</a></td><td>mode</td><td>A measure of central tendency that is the most frequently occurring value in a data set. If no value is repeated, there is no mode. If more than one value occurs with the same greatest frequency, each of these values is a mode.</td><td>A measure of central tendency that is the most frequently occurring value in a data set. If no value is repeated, there is no mode. If more than one value occurs with the same greatest frequency, each of these values is a mode.</td><td>most frequent value</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000397">STATO:0000397</a></td><td>harmonic mean</td><td>A measure of central tendency calculated by dividing the total number of observations by the sum of the reciprocals of each observed value.</td><td>A measure of central tendency calculated by dividing the total number of observations by the sum of the reciprocals of each observed value.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000293">STATO:0000293</a></td><td>percentile</td><td>A quantile in which the specific portion of the number of data points is expressed as a percentage.</td><td>A quantile in which the specific portion of the number of data points is expressed as a percentage.</td><td>%ile</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000292">STATO:0000292</a></td><td>decile</td><td>A quantile in which the specific portion of the number of data points is expressed as a number of tenths.</td><td>A quantile in which the specific portion of the number of data points is expressed as a number of tenths.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000152">STATO:0000152</a></td><td>quartile</td><td>A quantile in which the specific portion of the number of data points is expressed as a number of fourths.</td><td>A quantile in which the specific portion of the number of data points is expressed as a number of fourths.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000167">STATO:0000167</a></td><td>first quartile</td><td>A quantile for which the number of data points at or below it constitutes a 25% of the total number of data points.</td><td>A quantile for which the number of data points at or below it constitutes a 25% of the total number of data points.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000170">STATO:0000170</a></td><td>third quartile</td><td>A quantile for which the number of data points at or below it constitutes a 75% of the total number of data points.</td><td>A quantile for which the number of data points at or below it constitutes a 75% of the total number of data points.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000614">STATO:0000614</a></td><td>absolute difference</td><td>A statistic that is a subtraction of one quantity from another, with no modification of the resulting value.</td><td>A statistic that is a subtraction of one quantity from another, with no modification of the resulting value.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000616">STATO:0000616</a></td><td>count difference</td><td>A statistic that is a subtraction of one count from another.</td><td>A statistic that is a subtraction of one count from another.</td><td>number difference</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000457">STATO:0000457</a></td><td>difference in means</td><td>A statistic that is a subtraction of one mean from another.</td><td>A statistic that is a subtraction of one mean from another.</td><td>difference of means</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000617">STATO:0000617</a></td><td>difference in medians</td><td>A statistic that is a subtraction of one median from another.</td><td>A statistic that is a subtraction of one median from another.</td><td>difference of medians</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000424">STATO:0000424</a></td><td>risk difference</td><td>A measure of association that is the subtraction of the risk of an event in one group from the risk of the same event in another group.</td><td>A measure of association that is the subtraction of the risk of an event in one group from the risk of the same event in another group.</td><td>ARD</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000665">STATO:0000665</a></td><td>difference-in-differences</td><td>A statistic that is a subtraction of one difference from another.</td><td>A statistic that is a subtraction of one difference from another.</td><td>difference in differences</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000615">STATO:0000615</a></td><td>relative difference</td><td>A statistic that is a difference between 1 and a ratio of the two quantities being compared.</td><td>A statistic that is a difference between 1 and a ratio of the two quantities being compared.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000625">STATO:0000625</a></td><td>relative mean difference</td><td>A statistic that is a difference between 1 and a ratio of the two mean values being compared.</td><td>A statistic that is a difference between 1 and a ratio of the two mean values being compared.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000626">STATO:0000626</a></td><td>relative risk difference</td><td>A statistic that is a difference between 1 and a ratio of the two risk values being compared.</td><td>A statistic that is a difference between 1 and a ratio of the two risk values being compared.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000100">STATO:0000100</a></td><td>standardized mean difference</td><td>A statistic that is a difference between two means, divided by a statistical measure of dispersion.</td><td>A statistic that is a difference between two means, divided by a statistical measure of dispersion.</td><td>smd</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000618">STATO:0000618</a></td><td>Cohen’s d statistic</td><td>A standardized mean difference which is calculated as a difference between two means, divided by a square root of an average of the variances of the two groups.</td><td>A standardized mean difference which is calculated as a difference between two means, divided by a square root of an average of the variances of the two groups.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000135">STATO:0000135</a></td><td>strictly standardized mean difference</td><td>A standardized mean difference which is calculated as a difference between two means, divided by the standard error of the difference between the two means.</td><td>A standardized mean difference which is calculated as a difference between two means, divided by the standard error of the difference between the two means.</td><td>ssmd</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000319">STATO:0000319</a></td><td>Hedges’s g</td><td>A standardized mean difference which is calculated as a difference between two means, divided by the pooled standard deviation.</td><td>A standardized mean difference which is calculated as a difference between two means, divided by the pooled standard deviation.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000320">STATO:0000320</a></td><td>Glass’s delta</td><td>A standardized mean difference which is calculated as a difference between two means (of an experimental group and a control group), divided by the standard deviation of the control group.</td><td>A standardized mean difference which is calculated as a difference between two means (of an experimental group and a control group), divided by the standard deviation of the control group.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000635">STATO:0000635</a></td><td>number needed to treat</td><td>A statistic that represents the number of units that needs to be treated to prevent one additional undesired outcome. The Number Needed to Treat is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference.</td><td>A statistic that represents the number of units that needs to be treated to prevent one additional undesired outcome. The Number Needed to Treat is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference.</td><td>NNTB</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000637">STATO:0000637</a></td><td>number needed to screen to detect</td><td>A statistic that represents the number of units that needs to be tested to identify one additional case. The Number Needed to Screen to Detect is calculated as the reciprocal of a difference in rate of detected cases with and without screening.</td><td>A statistic that represents the number of units that needs to be tested to identify one additional case. The Number Needed to Screen to Detect is calculated as the reciprocal of a difference in rate of detected cases with and without screening.</td><td>NNS</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000636">STATO:0000636</a></td><td>number needed to screen to prevent</td><td>A statistic that represents the number of units that needs to be tested to prevent one additional adverse outcome, assuming that positive testing will lead to preventive intervention. The Number Needed to Screen to Prevent is calculated as the Number Needed to Treat divided by the prevalence.</td><td>A statistic that represents the number of units that needs to be tested to prevent one additional adverse outcome, assuming that positive testing will lead to preventive intervention. The Number Needed to Screen to Prevent is calculated as the Number Needed to Treat divided by the prevalence.</td><td>NNS</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000638">STATO:0000638</a></td><td>number needed to harm</td><td>A statistic that represents the number of units that, if treated or exposed to the intervention, to lead to one additional undesired outcome. The Number Needed to Harm is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference.</td><td>A statistic that represents the number of units that, if treated or exposed to the intervention, to lead to one additional undesired outcome. The Number Needed to Harm is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference.</td><td>NNTH</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000639">STATO:0000639</a></td><td>percentage</td><td>A ratio that is multiplied by 100, and has the same units of measurement in the numerator and the denominator.</td><td>A ratio that is multiplied by 100, and has the same units of measurement in the numerator and the denominator.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000705">STATO:0000705</a></td><td>measurement accuracy</td><td>A percentage in which the numerator represents the absolute value of one minus the difference between the true value and the observed value, and the denominator represents the true value.</td><td>A percentage in which the numerator represents the absolute value of one minus the difference between the true value and the observed value, and the denominator represents the true value.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000607">STATO:0000607</a></td><td>proportion</td><td>A ratio in which the numerator represents a part, fraction or share of the amount represented by the denominator.</td><td>A ratio in which the numerator represents a part, fraction or share of the amount represented by the denominator.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000413">STATO:0000413</a></td><td>incidence</td><td>A proportion in which the numerator represents new events.</td><td>A proportion in which the numerator represents new events.</td><td>incidence proportion</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000412">STATO:0000412</a></td><td>prevalence</td><td>A proportion in which the numerator represents all events of interest (for example, both new and preexisting cases of a disease) in the population, which is represented by the denominator.</td><td>A proportion in which the numerator represents all events of interest (for example, both new and preexisting cases of a disease) in the population, which is represented by the denominator.</td><td>lifetime prevalence</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000233">STATO:0000233</a></td><td>sensitivity</td><td>A proportion in which the numerator represents the detected items within the denominator that represents all items with the targeted attribute.</td><td>A proportion in which the numerator represents the detected items within the denominator that represents all items with the targeted attribute.</td><td>true positive rate</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000134">STATO:0000134</a></td><td>specificity</td><td>A proportion in which the numerator represents the non-detected items within the denominator that represents all items without the targeted attribute.</td><td>A proportion in which the numerator represents the non-detected items within the denominator that represents all items without the targeted attribute.</td><td>true negative rate</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000416">STATO:0000416</a></td><td>positive predictive value</td><td>A proportion in which the numerator represents the correctly detected items within the denominator that represents all items detected.</td><td>A proportion in which the numerator represents the correctly detected items within the denominator that represents all items detected.</td><td>PPV</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000619">STATO:0000619</a></td><td>negative predictive value</td><td>A proportion in which the numerator represents the correctly non-detected items within the denominator that represents all items not detected.</td><td>A proportion in which the numerator represents the correctly non-detected items within the denominator that represents all items not detected.</td><td>NPV</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000621">STATO:0000621</a></td><td>diagnostic yield</td><td>A proportion in which the numerator represents the correctly detected items within the denominator that represents all items tested.</td><td>A proportion in which the numerator represents the correctly detected items within the denominator that represents all items tested.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000620">STATO:0000620</a></td><td>risk</td><td>A proportion in which the numerator represents the cases in which an event or characteristic occurs and the denominator represents all possible cases.</td><td>A proportion in which the numerator represents the cases in which an event or characteristic occurs and the denominator represents all possible cases.</td><td>probability</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000627">STATO:0000627</a></td><td>odds</td><td>A ratio in which the numerator represents the probability that an event will occur and the denominator represents the probability that an event will not occur.</td><td>A ratio in which the numerator represents the probability that an event will occur and the denominator represents the probability that an event will not occur.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000645">STATO:0000645</a></td><td>rate</td><td>A ratio in which the numerator represents any quantity and the denominator represents an interval of time.</td><td>A ratio in which the numerator represents any quantity and the denominator represents an interval of time.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000670">STATO:0000670</a></td><td>incidence rate</td><td>A rate in which the number of new events per total at risk is divided by an interval of time.</td><td>A rate in which the number of new events per total at risk is divided by an interval of time.</td><td>average hazard rate</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000671">STATO:0000671</a></td><td>hazard rate</td><td>A conditional instantaneous rate in which the numerator represents an incidence conditioned on survival to a specified time, and the denominator represents a time interval with a duration approaching zero.</td><td>A conditional instantaneous rate in which the numerator represents an incidence conditioned on survival to a specified time, and the denominator represents a time interval with a duration approaching zero.</td><td>instantaneous hazard rate</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000672">STATO:0000672</a></td><td>event rate</td><td>The number of occurrences per unit of time.</td><td>The number of occurrences per unit of time.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000673">STATO:0000673</a></td><td>event frequency rate</td><td>A ratio in which the numerator represents an event frequency and the denominator represents an interval of time.</td><td>A ratio in which the numerator represents an event frequency and the denominator represents an interval of time.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000674">STATO:0000674</a></td><td>event frequency</td><td>A ratio in which the numerator represents a count and the denominator represents a count (without involving an interval of time).</td><td>A ratio in which the numerator represents a count and the denominator represents a count (without involving an interval of time).</td><td>frequentist probability</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000675">STATO:0000675</a></td><td>density</td><td>A ratio in which the numerator represents any quantity and the denominator represents an interval of space (distance, area, or volume).</td><td>A ratio in which the numerator represents any quantity and the denominator represents an interval of space (distance, area, or volume).</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000676">STATO:0000676</a></td><td>number density</td><td>A ratio in which the numerator represents a count and the denominator represents an interval of space (distance, area, or volume).</td><td>A ratio in which the numerator represents a count and the denominator represents an interval of space (distance, area, or volume).</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000704">STATO:0000704</a></td><td>concentration</td><td>A ratio in which the numerator is a measure of the solute and the denominator is a measure of the solvent.</td><td>A ratio in which the numerator is a measure of the solute and the denominator is a measure of the solvent.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000622">STATO:0000622</a></td><td>ratio-based measure of association</td><td>A measure of association expressed as a ratio.</td><td>A measure of association expressed as a ratio.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000677">STATO:0000677</a></td><td>hazard ratio</td><td>A measure of association that is the ratio of the hazard rate of an event in one group to the hazard rate of the same event in another group.</td><td>A measure of association that is the ratio of the hazard rate of an event in one group to the hazard rate of the same event in another group.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000680">STATO:0000680</a></td><td>incidence rate ratio</td><td>A measure of association that is the ratio of two incidence rates.</td><td>A measure of association that is the ratio of two incidence rates.</td><td>IRR</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000681">STATO:0000681</a></td><td>standardized incidence ratio</td><td>An incidence rate ratio in which the numerator is the incidence rate in a group and the denominator is the incidence rate for a reference population.</td><td>An incidence rate ratio in which the numerator is the incidence rate in a group and the denominator is the incidence rate for a reference population.</td><td>SIR</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000182">STATO:0000182</a></td><td>odds ratio</td><td>A measure of association that is the ratio of two odds.</td><td>A measure of association that is the ratio of two odds.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000678">STATO:0000678</a></td><td>prevalence ratio</td><td>A measure of association that is the ratio of two prevalences.</td><td>A measure of association that is the ratio of two prevalences.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000245">STATO:0000245</a></td><td>risk ratio</td><td>A measure of association that is the ratio of the risk of an event in one group to the risk of the same event in another group.</td><td>A measure of association that is the ratio of the risk of an event in one group to the risk of the same event in another group.</td><td>relative risk</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000411">STATO:0000411</a></td><td>likelihood ratio positive</td><td>A measure of association that is the ratio of the probability of the test giving a positive result when testing an affected subject and the probability of the test giving a positive result when a subject is not affected.</td><td>A measure of association that is the ratio of the probability of the test giving a positive result when testing an affected subject and the probability of the test giving a positive result when a subject is not affected.</td><td>LR+</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000410">STATO:0000410</a></td><td>likelihood ratio negative</td><td>A measure of association that is the ratio of the probability of the test giving a negative result when testing an affected subject and the probability of the test giving a negative result when a subject is not affected.</td><td>A measure of association that is the ratio of the probability of the test giving a negative result when testing an affected subject and the probability of the test giving a negative result when a subject is not affected.</td><td>-LR</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000415">STATO:0000415</a></td><td>diagnostic accuracy</td><td>A measure of association that is the ratio of the number of correct results to the total number tested.</td><td>A measure of association that is the ratio of the number of correct results to the total number tested.</td><td>classification accuracy</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000679">STATO:0000679</a></td><td>diagnostic odds ratio</td><td>A measure of association that is the ratio of the odds of a positive test in those with disease relative to the odds of a positive test in those without disease.</td><td>A measure of association that is the ratio of the odds of a positive test in those with disease relative to the odds of a positive test in those without disease.</td><td>DOR</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000524">STATO:0000524</a></td><td>phi coefficient</td><td>A measure of association, ranging from -1 to 1, that measures the strength and direction of the linear relationship between two binary variables.</td><td>A measure of association, ranging from -1 to 1, that measures the strength and direction of the linear relationship between two binary variables.</td><td>Matthews correlation coefficient</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000682">STATO:0000682</a></td><td>kappa</td><td>A measure of agreement among categorical assessments, corrected for chance agreement.</td><td>A measure of agreement among categorical assessments, corrected for chance agreement.</td><td>kappa statistic</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000683">STATO:0000683</a></td><td>simple chance-corrected agreement coefficient</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that all possible categories for assignment are equally likely.</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that all possible categories for assignment are equally likely.</td><td>Brennan-Prediger agreement coefficient</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000630">STATO:0000630</a></td><td>Cohen’s kappa</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is 2.</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is 2.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000631">STATO:0000631</a></td><td>modified Cohen’s kappa for more than 2 raters</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is more than 2.</td><td>A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is more than 2.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000629">STATO:0000629</a></td><td>Scott’s pi</td><td>A Kappa statistic where the expected agreement between two raters is expressed in terms of the square of arithmetic means of marginal proportions of each assessment category.</td><td>A Kappa statistic where the expected agreement between two raters is expressed in terms of the square of arithmetic means of marginal proportions of each assessment category.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000632">STATO:0000632</a></td><td>misclassification rate</td><td>A ratio of the number of incorrect results to the total number tested.</td><td>A ratio of the number of incorrect results to the total number tested.</td><td>misclassification error</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000628">STATO:0000628</a></td><td>F1-score</td><td>A ratio representing the harmonic mean of recall and precision.</td><td>A ratio representing the harmonic mean of recall and precision.</td><td>F1-measure</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000301">STATO:0000301</a></td><td>covariance</td><td>A measure of correlation that is not normalized by the variances of the variables.</td><td>A measure of correlation that is not normalized by the variances of the variables.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000280">STATO:0000280</a></td><td>Pearson correlation coefficient</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the linear relationship between values of two continuous variables.</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the linear relationship between values of two continuous variables.</td><td>product moment correlation</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000201">STATO:0000201</a></td><td>Spearman rank-order correlation coefficient</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated as the Pearson correlation coefficient between the rank values.</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated as the Pearson correlation coefficient between the rank values.</td><td>Spearman's rho</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000240">STATO:0000240</a></td><td>Kendall correlation coefficient</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the number of all possible pairs of rankings.</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the number of all possible pairs of rankings.</td><td>Kendall's tau-b</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000612">STATO:0000612</a></td><td>Goodman and Kruskal’s gamma</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the total number of pairs of rankings, where ties are not counted among the pairs of rankings.</td><td>A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the total number of pairs of rankings, where ties are not counted among the pairs of rankings.</td><td>gamma coefficient</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000565">STATO:0000565</a></td><td>regression coefficient</td><td>A measure of association that is used as the coefficient of an independent variable in a regression model, of the dependent variable, which is linear in its parameters.</td><td>A measure of association that is used as the coefficient of an independent variable in a regression model, of the dependent variable, which is linear in its parameters.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000686">STATO:0000686</a></td><td>mean calibration</td><td>A measure of calibration that is the average of a function of the difference between the expected values and the observed values.</td><td>A measure of calibration that is the average of a function of the difference between the expected values and the observed values.</td><td/></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000688">STATO:0000688</a></td><td>calibration intercept</td><td>A measure of calibration that is the difference between the mean expected value and the mean observed value.</td><td>A measure of calibration that is the difference between the mean expected value and the mean observed value.</td><td>calibration-in-the-large</td></tr><tr><td><a href="http://tx.fhir.org/r5/ValueSet/SEVCO#SEVCO-STATO.580000687">STATO:0000687</a></td><td>calibration slope</td><td>A measure of calibration that is the rate of change in the appropriately transformed value per unit change of the correspondingly transformed predicted value.</td><td>A measure of calibration that is the rate of change in the appropriately transformed value per unit change of the correspondingly transformed predicted value.</td><td>calibration-in-the-small</td></tr></table></li></ul></div>
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<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A quantile in which the specific portion of the number of data points is expressed as a percentage."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="centile"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="%ile"/>
</designation>
</concept>
<concept>
<code value="STATO:0000292"/>
<display value="decile"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A quantile in which the specific portion of the number of data points is expressed as a number of tenths."/>
</designation>
</concept>
<concept>
<code value="STATO:0000152"/>
<display value="quartile"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A quantile in which the specific portion of the number of data points is expressed as a number of fourths."/>
</designation>
</concept>
<concept>
<code value="STATO:0000167"/>
<display value="first quartile"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A quantile for which the number of data points at or below it constitutes a 25% of the total number of data points."/>
</designation>
</concept>
<concept>
<code value="STATO:0000170"/>
<display value="third quartile"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A quantile for which the number of data points at or below it constitutes a 75% of the total number of data points."/>
</designation>
</concept>
<concept>
<code value="STATO:0000614"/>
<display value="absolute difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a subtraction of one quantity from another, with no modification of the resulting value."/>
</designation>
</concept>
<concept>
<code value="STATO:0000616"/>
<display value="count difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a subtraction of one count from another."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="difference in counts"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="number difference"/>
</designation>
</concept>
<concept>
<code value="STATO:0000457"/>
<display value="difference in means"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a subtraction of one mean from another."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="difference of means"/>
</designation>
</concept>
<concept>
<code value="STATO:0000617"/>
<display value="difference in medians"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a subtraction of one median from another."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="difference of medians"/>
</designation>
</concept>
<concept>
<code value="STATO:0000424"/>
<display value="risk difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the subtraction of the risk of an event in one group from the risk of the same event in another group."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="absolute risk difference"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="RD"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="ARD"/>
</designation>
</concept>
<concept>
<code value="STATO:0000665"/>
<display value="difference-in-differences"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a subtraction of one difference from another."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="difference in differences"/>
</designation>
</concept>
<concept>
<code value="STATO:0000615"/>
<display value="relative difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a difference between 1 and a ratio of the two quantities being compared."/>
</designation>
</concept>
<concept>
<code value="STATO:0000625"/>
<display value="relative mean difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a difference between 1 and a ratio of the two mean values being compared."/>
</designation>
</concept>
<concept>
<code value="STATO:0000626"/>
<display value="relative risk difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a difference between 1 and a ratio of the two risk values being compared."/>
</designation>
</concept>
<concept>
<code value="STATO:0000100"/>
<display value="standardized mean difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that is a difference between two means, divided by a statistical measure of dispersion."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="smd"/>
</designation>
</concept>
<concept>
<code value="STATO:0000618"/>
<display value="Cohen’s d statistic"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A standardized mean difference which is calculated as a difference between two means, divided by a square root of an average of the variances of the two groups."/>
</designation>
</concept>
<concept>
<code value="STATO:0000135"/>
<display value="strictly standardized mean difference"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A standardized mean difference which is calculated as a difference between two means, divided by the standard error of the difference between the two means."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="ssmd"/>
</designation>
</concept>
<concept>
<code value="STATO:0000319"/>
<display value="Hedges’s g"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A standardized mean difference which is calculated as a difference between two means, divided by the pooled standard deviation."/>
</designation>
</concept>
<concept>
<code value="STATO:0000320"/>
<display value="Glass’s delta"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A standardized mean difference which is calculated as a difference between two means (of an experimental group and a control group), divided by the standard deviation of the control group."/>
</designation>
</concept>
<concept>
<code value="STATO:0000635"/>
<display value="number needed to treat"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that represents the number of units that needs to be treated to prevent one additional undesired outcome. The Number Needed to Treat is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="number needed to treat to benefit"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNT"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNTB"/>
</designation>
</concept>
<concept>
<code value="STATO:0000637"/>
<display value="number needed to screen to detect"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that represents the number of units that needs to be tested to identify one additional case. The Number Needed to Screen to Detect is calculated as the reciprocal of a difference in rate of detected cases with and without screening."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNS"/>
</designation>
</concept>
<concept>
<code value="STATO:0000636"/>
<display value="number needed to screen to prevent"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that represents the number of units that needs to be tested to prevent one additional adverse outcome, assuming that positive testing will lead to preventive intervention. The Number Needed to Screen to Prevent is calculated as the Number Needed to Treat divided by the prevalence."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNS"/>
</designation>
</concept>
<concept>
<code value="STATO:0000638"/>
<display value="number needed to harm"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A statistic that represents the number of units that, if treated or exposed to the intervention, to lead to one additional undesired outcome. The Number Needed to Harm is calculated as the reciprocal of a treatment effect estimate, where the effect estimate is expressed as a risk difference."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="number needed to treat to harm"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNH"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NNTH"/>
</designation>
</concept>
<concept>
<code value="STATO:0000639"/>
<display value="percentage"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio that is multiplied by 100, and has the same units of measurement in the numerator and the denominator."/>
</designation>
</concept>
<concept>
<code value="STATO:0000705"/>
<display value="measurement accuracy"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A percentage in which the numerator represents the absolute value of one minus the difference between the true value and the observed value, and the denominator represents the true value."/>
</designation>
</concept>
<concept>
<code value="STATO:0000607"/>
<display value="proportion"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents a part, fraction or share of the amount represented by the denominator."/>
</designation>
</concept>
<concept>
<code value="STATO:0000413"/>
<display value="incidence"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents new events."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="cumulative incidence"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="incidence proportion"/>
</designation>
</concept>
<concept>
<code value="STATO:0000412"/>
<display value="prevalence"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents all events of interest (for example, both new and preexisting cases of a disease) in the population, which is represented by the denominator."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="period prevalence"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="point prevalence"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="lifetime prevalence"/>
</designation>
</concept>
<concept>
<code value="STATO:0000233"/>
<display value="sensitivity"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the detected items within the denominator that represents all items with the targeted attribute."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="recall"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="true positive rate"/>
</designation>
</concept>
<concept>
<code value="STATO:0000134"/>
<display value="specificity"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the non-detected items within the denominator that represents all items without the targeted attribute."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="true negative rate"/>
</designation>
</concept>
<concept>
<code value="STATO:0000416"/>
<display value="positive predictive value"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the correctly detected items within the denominator that represents all items detected."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="precision (as used in information retrieval)"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="PPV"/>
</designation>
</concept>
<concept>
<code value="STATO:0000619"/>
<display value="negative predictive value"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the correctly non-detected items within the denominator that represents all items not detected."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="NPV"/>
</designation>
</concept>
<concept>
<code value="STATO:0000621"/>
<display value="diagnostic yield"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the correctly detected items within the denominator that represents all items tested."/>
</designation>
</concept>
<concept>
<code value="STATO:0000620"/>
<display value="risk"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A proportion in which the numerator represents the cases in which an event or characteristic occurs and the denominator represents all possible cases."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="probability"/>
</designation>
</concept>
<concept>
<code value="STATO:0000627"/>
<display value="odds"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents the probability that an event will occur and the denominator represents the probability that an event will not occur."/>
</designation>
</concept>
<concept>
<code value="STATO:0000645"/>
<display value="rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents any quantity and the denominator represents an interval of time."/>
</designation>
</concept>
<concept>
<code value="STATO:0000670"/>
<display value="incidence rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A rate in which the number of new events per total at risk is divided by an interval of time."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="incidence density"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="average hazard rate"/>
</designation>
</concept>
<concept>
<code value="STATO:0000671"/>
<display value="hazard rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A conditional instantaneous rate in which the numerator represents an incidence conditioned on survival to a specified time, and the denominator represents a time interval with a duration approaching zero."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="hazard"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="hazard function"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="instantaneous hazard rate"/>
</designation>
</concept>
<concept>
<code value="STATO:0000672"/>
<display value="event rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value value="The number of occurrences per unit of time."/>
</designation>
</concept>
<concept>
<code value="STATO:0000673"/>
<display value="event frequency rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents an event frequency and the denominator represents an interval of time."/>
</designation>
</concept>
<concept>
<code value="STATO:0000674"/>
<display value="event frequency"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents a count and the denominator represents a count (without involving an interval of time)."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="frequentist probability"/>
</designation>
</concept>
<concept>
<code value="STATO:0000675"/>
<display value="density"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents any quantity and the denominator represents an interval of space (distance, area, or volume)."/>
</designation>
</concept>
<concept>
<code value="STATO:0000676"/>
<display value="number density"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator represents a count and the denominator represents an interval of space (distance, area, or volume)."/>
</designation>
</concept>
<concept>
<code value="STATO:0000704"/>
<display value="concentration"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio in which the numerator is a measure of the solute and the denominator is a measure of the solvent."/>
</designation>
</concept>
<concept>
<code value="STATO:0000622"/>
<display value="ratio-based measure of association"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value value="A measure of association expressed as a ratio."/>
</designation>
</concept>
<concept>
<code value="STATO:0000677"/>
<display value="hazard ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the hazard rate of an event in one group to the hazard rate of the same event in another group."/>
</designation>
</concept>
<concept>
<code value="STATO:0000680"/>
<display value="incidence rate ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of two incidence rates."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="IRR"/>
</designation>
</concept>
<concept>
<code value="STATO:0000681"/>
<display value="standardized incidence ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="An incidence rate ratio in which the numerator is the incidence rate in a group and the denominator is the incidence rate for a reference population."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="SIR"/>
</designation>
</concept>
<concept>
<code value="STATO:0000182"/>
<display value="odds ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of two odds."/>
</designation>
</concept>
<concept>
<code value="STATO:0000678"/>
<display value="prevalence ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of two prevalences."/>
</designation>
</concept>
<concept>
<code value="STATO:0000245"/>
<display value="risk ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the risk of an event in one group to the risk of the same event in another group."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="relative risk"/>
</designation>
</concept>
<concept>
<code value="STATO:0000411"/>
<display value="likelihood ratio positive"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the probability of the test giving a positive result when testing an affected subject and the probability of the test giving a positive result when a subject is not affected."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="positive likelihood ratio"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="+LR"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="LR+"/>
</designation>
</concept>
<concept>
<code value="STATO:0000410"/>
<display value="likelihood ratio negative"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the probability of the test giving a negative result when testing an affected subject and the probability of the test giving a negative result when a subject is not affected."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="negative likelihood ratio"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="LR-"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="-LR"/>
</designation>
</concept>
<concept>
<code value="STATO:0000415"/>
<display value="diagnostic accuracy"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the number of correct results to the total number tested."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="categorical accuracy"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="classification accuracy"/>
</designation>
</concept>
<concept>
<code value="STATO:0000679"/>
<display value="diagnostic odds ratio"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is the ratio of the odds of a positive test in those with disease relative to the odds of a positive test in those without disease."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="DOR"/>
</designation>
</concept>
<concept>
<code value="STATO:0000524"/>
<display value="phi coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association, ranging from -1 to 1, that measures the strength and direction of the linear relationship between two binary variables."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="mean square contingency coefficient"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Yule phi"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Matthews correlation coefficient"/>
</designation>
</concept>
<concept>
<code value="STATO:0000682"/>
<display value="kappa"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of agreement among categorical assessments, corrected for chance agreement."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="kappa statistic"/>
</designation>
</concept>
<concept>
<code value="STATO:0000683"/>
<display value="simple chance-corrected agreement coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A Kappa statistic in which the expected agreement by chance is based on an assumption that all possible categories for assignment are equally likely."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Bennett’s Kappa"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Brennan-Prediger agreement coefficient"/>
</designation>
</concept>
<concept>
<code value="STATO:0000630"/>
<display value="Cohen’s kappa"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is 2."/>
</designation>
</concept>
<concept>
<code value="STATO:0000631"/>
<display value="modified Cohen’s kappa for more than 2 raters"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A Kappa statistic in which the expected agreement by chance is based on an assumption that the likelihood of each category for assignment is based on the proportion observed, and the number of raters is more than 2."/>
</designation>
</concept>
<concept>
<code value="STATO:0000629"/>
<display value="Scott’s pi"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A Kappa statistic where the expected agreement between two raters is expressed in terms of the square of arithmetic means of marginal proportions of each assessment category."/>
</designation>
</concept>
<concept>
<code value="STATO:0000632"/>
<display value="misclassification rate"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio of the number of incorrect results to the total number tested."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="classification error"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="misclassification error"/>
</designation>
</concept>
<concept>
<code value="STATO:0000628"/>
<display value="F1-score"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A ratio representing the harmonic mean of recall and precision."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F1 score"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F1 measure"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F measure"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F score"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F-score"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F-measure"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="F1-measure"/>
</designation>
</concept>
<concept>
<code value="STATO:0000301"/>
<display value="covariance"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of correlation that is not normalized by the variances of the variables."/>
</designation>
</concept>
<concept>
<code value="STATO:0000280"/>
<display value="Pearson correlation coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the linear relationship between values of two continuous variables."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="product moment"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="product moment correlation"/>
</designation>
</concept>
<concept>
<code value="STATO:0000201"/>
<display value="Spearman rank-order correlation coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated as the Pearson correlation coefficient between the rank values."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Spearman's rank correlation coefficient"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Spearman's rho"/>
</designation>
</concept>
<concept>
<code value="STATO:0000240"/>
<display value="Kendall correlation coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the number of all possible pairs of rankings."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Kendall's tau coefficient"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Kendall's tau"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Kendall's t"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Kendall rank correlation coefficient"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Kendall's tau-b"/>
</designation>
</concept>
<concept>
<code value="STATO:0000612"/>
<display value="Goodman and Kruskal’s gamma"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of correlation, ranging from -1 to 1, that measures the strength and direction of the relationship between ranks by value of two ordinal or continuous variables, and is calculated based on the difference in the number of concordant and discordant pairs of rankings divided by the total number of pairs of rankings, where ties are not counted among the pairs of rankings."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="Goodman-Kruskal gamma"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="gamma statistic"/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="gamma coefficient"/>
</designation>
</concept>
<concept>
<code value="STATO:0000565"/>
<display value="regression coefficient"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of association that is used as the coefficient of an independent variable in a regression model, of the dependent variable, which is linear in its parameters."/>
</designation>
</concept>
<concept>
<code value="STATO:0000686"/>
<display value="mean calibration"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of calibration that is the average of a function of the difference between the expected values and the observed values."/>
</designation>
</concept>
<concept>
<code value="STATO:0000688"/>
<display value="calibration intercept"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of calibration that is the difference between the mean expected value and the mean observed value."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="calibration-in-the-large"/>
</designation>
</concept>
<concept>
<code value="STATO:0000687"/>
<display value="calibration slope"/>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000550004"/>
<display value="Definition (core metadata concept)"/>
</use>
<value
value="A measure of calibration that is the rate of change in the appropriately transformed value per unit change of the correspondingly transformed predicted value."/>
</designation>
<designation>
<use>
<system value="http://snomed.info/sct"/>
<code value="900000000000013009"/>
<display value="Synonym (core metadata concept)"/>
</use>
<value value="calibration-in-the-small"/>
</designation>
</concept>
</include>
</compose>
</ValueSet>
IG © 2020+ HL7 International - Vocabulary Work Group.
Package hl7.terminology#6.3.0 based on FHIR 5.0.0.
Generated
2026-05-15
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