Models a ratio of values, i.e. where the numerator and denominator are both pure numbers. The _valid_proportion_kind_ property of the PROPORTION_KIND class is used to control the type attribute to be one of a defined set.

Used for recording titers (e.g. 1:128), concentration ratios, e.g. Na:K (unitary denominator), albumin:creatinine ratio, and percentages, e.g. red cell distirbution width (RDW).

Misuse: Should not be used to represent things like blood pressure which are often written using a '/' character, giving the misleading impression that the item is a ratio, when in fact it is a structured value. Similarly, visual acuity, often written as (e.g.) "6/24" in clinical notes is not a ratio but an ordinal (which includes non-numeric symbols like CF = count fingers etc). Should not be used for formulations.

Carriage return character.

Line feed character.

Predefined terminology identifier to indicate it is local to the knowledge resource in which it occurs, e.g. an archetype

Optional normal status indicator of value with respect to normal range for this value. Often included by lab, even if the normal range itself is not included. Coded by ordinals in series HHH, HH, H, (nothing), L, LL, LLL; see openEHR terminology group normal_status.

Optional normal range.

Optional tagged other reference ranges for this value in its particular measurement context.

Optional status of magnitude with values:

• "=" : magnitude is a point value
• "<" : value is < magnitude
• ">" : value is > magnitude
• "<=" : value is <= magnitude
• ">=" : value is >= magnitude
• "~" : value is approximately magnitude

If not present, assumed meaning is "=".

Accuracy of measurement, expressed either as a half-range percent value (_accuracy_is_percent_ = True) or a half-range quantity. A value of 0 means that accuracy is 100%, i.e. no error.

A value of _unknown_accuracy_value_ means that accuracy was not recorded.

If True, indicates that when this object was created, _accuracy_ was recorded as a percent value; if False, as an absolute quantity value.

Numerator of ratio

Denominator of ratio.

Indicates semantic type of proportion, including percent, unitary etc.

Precision to which the _numerator_ and _denominator_ values of the proportion are expressed, in terms of number of decimal places. The value 0 implies an integral quantity. The value -1 implies no limit, i.e. any number of decimal places.

Models a ratio of values, i.e. where the numerator and denominator are both pure numbers. The _valid_proportion_kind_ property of the PROPORTION_KIND class is used to control the type attribute to be one of a defined set.

Used for recording titers (e.g. 1:128), concentration ratios, e.g. Na:K (unitary denominator), albumin:creatinine ratio, and percentages, e.g. red cell distirbution width (RDW).

Misuse: Should not be used to represent things like blood pressure which are often written using a '/' character, giving the misleading impression that the item is a ratio, when in fact it is a structured value. Similarly, visual acuity, often written as (e.g.) "6/24" in clinical notes is not a ratio but an ordinal (which includes non-numeric symbols like CF = count fingers etc). Should not be used for formulations.

Numerator of ratio

Denominator of ratio.

Indicates semantic type of proportion, including percent, unitary etc.

Precision to which the _numerator_ and _denominator_ values of the proportion are expressed, in terms of number of decimal places. The value 0 implies an integral quantity. The value -1 implies no limit, i.e. any number of decimal places.

Optional normal range.

Optional tagged other reference ranges for this value in its particular measurement context.

Models a ratio of values, i.e. where the numerator and denominator are both pure numbers. The _valid_proportion_kind_ property of the PROPORTION_KIND class is used to control the type attribute to be one of a defined set.

Used for recording titers (e.g. 1:128), concentration ratios, e.g. Na:K (unitary denominator), albumin:creatinine ratio, and percentages, e.g. red cell distirbution width (RDW).

Misuse: Should not be used to represent things like blood pressure which are often written using a '/' character, giving the misleading impression that the item is a ratio, when in fact it is a structured value. Similarly, visual acuity, often written as (e.g.) "6/24" in clinical notes is not a ratio but an ordinal (which includes non-numeric symbols like CF = count fingers etc). Should not be used for formulations.

Carriage return character.

Line feed character.

Predefined terminology identifier to indicate it is local to the knowledge resource in which it occurs, e.g. an archetype

Optional normal status indicator of value with respect to normal range for this value. Often included by lab, even if the normal range itself is not included. Coded by ordinals in series HHH, HH, H, (nothing), L, LL, LLL; see openEHR terminology group normal_status.

Optional normal range.

Optional tagged other reference ranges for this value in its particular measurement context.

Optional status of magnitude with values:

• "=" : magnitude is a point value
• "<" : value is < magnitude
• ">" : value is > magnitude
• "<=" : value is <= magnitude
• ">=" : value is >= magnitude
• "~" : value is approximately magnitude

If not present, assumed meaning is "=".

Accuracy of measurement, expressed either as a half-range percent value (_accuracy_is_percent_ = True) or a half-range quantity. A value of 0 means that accuracy is 100%, i.e. no error.

A value of _unknown_accuracy_value_ means that accuracy was not recorded.

If True, indicates that when this object was created, _accuracy_ was recorded as a percent value; if False, as an absolute quantity value.

Numerator of ratio

Denominator of ratio.

Indicates semantic type of proportion, including percent, unitary etc.

Precision to which the _numerator_ and _denominator_ values of the proportion are expressed, in terms of number of decimal places. The value 0 implies an integral quantity. The value -1 implies no limit, i.e. any number of decimal places.