Title: HIV.IND.42 Logic Id: HIVIND42Logic Version: 0.4.4 Url: HIV.IND.42 Logic Status: draft Experimental: true Type: system: http://terminology.hl7.org/CodeSystem/library-type code: logic-library Date: 2025-12-10 09:22:27+0000 Publisher: WHO Description: % of HIV-exposed infants whose final HIV outcome status is known Related Artifacts: Dependencies http://smart.who.int/hiv/Library/HIVCommon|0.0.1 WHOCommon HIVElements HIVIndicatorElements Parameters: Name Type Min Max In/Out Measurement Period Period 0 1 In Patient Patient 0 1 Out Initial Population boolean 0 1 Out Numerator boolean 0 1 Out Denominator boolean 0 1 Out Geographic Region Stratifier string 0 1 Out HIV Status Stratifier infant Coding 0 1 Out Stratification string 0 1 Out Content: text/cql /** * Library: HIV.IND.42 Logic * Ref No: VER.6 * Short Name: Final outcome of PMTCT * * Definition: % of HIV-exposed infants whose final HIV outcome status is known * * Numerator: HIV-exposed infants born within the past 12 months (or 24 months in breastfeeding settings) who have known final HIV outcome status * Numerator Calculation: COUNT of infants who are an "HIV-exposed infant or child" AND [(with an "Infant date of birth" in past 12 months) OR (with an "Infant date of birth" in past 24 months IF mothers are "Breastfeeding")] AND "Registered in birth cohort"=True AND with a "Final diagnosis of HIV-exposed infant" of NOT NULL * Numerator Exclusions: * * Denominator: a) Programme-based/service delivery denominator | Number of HIV-exposed infants who were born within the 12 months (or 24 months in breastfeeding settings) prior to the reporting period and registered in the birth cohort | For example, for the reporting period January to December 2021 the denominator would be the number of HIV-exposed infants born between January to December 2020 in non-breast feeding settings and January to December 2019 in breastfeeding settings. | | b) Population-based denominator | Estimated number of HIV-positive women who delivered within the past 12 months | (or 24 months in breastfeeding settings) * Denominator Calculation: COUNT of infants who are an "HIV-exposed infant or child" AND [(with an "Infant date of birth" within past 12 months) OR (with an "Infant date of birth" within past 24 months IF mothers are "Breastfeeding")] AND "Registered in birth cohort"=True * Denominator Exclusions: * * Disaggregations: * • Outcome status (HIV-positive, HIV-negative, no longer breastfeeding) * • Cities and other administrative regions of epidemiologic importance * * Disaggregation Elements: Infant HIV status * * Numerator and Denominator Elements: * Breastfeeding * Final diagnosis of HIV-exposed infant * HIV-exposed infant or child * Infant date of birth * Registered in birth cohort * * Reference: Consolidated guidelines on person-centred HIV strategic information: strengthening routine data for impact. Geneva: World Health Organization; 2022 * * Data Concepts: * HIV.B.DE32: Breastfeeding | Infant is being breastfed by mother * HIV.D.DE32: Breastfeeding | Client is giving infant breast milk * HIV.E.DE87: Infant date of birth | The infant's date of birth (DOB) if known * HIV.E.DE112: HIV-exposed infant or child | Whether the infant or child was determined to have had HIV exposure * HIV.E.DE179: Registered in birth cohort | Whether the infant has been registered in a birth cohort * HIV.E.DE225: Infant HIV status | HIV status reported after applying the HIV testing algorithm. No single HIV test can provide an HIV-positive diagnosis. * HIV.E.DE226: HIV-positive | Infant is HIV-positive * HIV.E.DE227: HIV-negative | Infant is HIV-negative * HIV.E.DE228: Unknown | Infant has unknown HIV status * HIV.E.DE230: Final diagnosis of HIV-exposed infant | HIV-exposed infant final status at 18 months or 3 months after cessation of breastfeeding (whichever is later). * HIV.E.DE231: HIV-positive | The infant is HIV-positive * HIV.E.DE232: HIV-negative and no longer breastfeeding | The infant is HIV-negative and the mother has quit breastfeeding * HIV.E.DE233: HIV status unknown | The final HIV status of the child is unknown because the infant died, was lost to follow-up or transferred out without ever having an HIV-positive diagnosis or is active in care but was not tested at 18 months * HIV.SRV.DE20: HIV-exposed infant or child | Whether the infant or child was determined to have had HIV exposure * HIV.SRV.DE22: Final diagnosis of HIV-exposed infant | HIV-exposed infant final status at 18 months or 3 months after cessation of breastfeeding (whichever is later). * * Additional Context * - what it measures: This indicator measures quality of programme follow-up to track exposed infants and ascertain final HIV status. * - rationale: • Effective PMTCT programmes must follow HIV-exposed infants until the end of the breastfeeding period to ensure that the full cascade of services and support is provided to HIV-positive mothers and their infants. | • The ability to ascertain final outcome status through routine programme data across multiple points of care is a key challenge. * - method: This indicator measures quality of programme follow-up to track exposed infants and ascertain final HIV status. * * Suggested Scoring Method: proportion | http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/proportion-measure-cqfm */ library HIVIND42Logic // Included Libraries using FHIR version '4.0.1' include HIVCommon version '0.0.1' called HIC include FHIRHelpers version '4.0.1' include WHOCommon called WCom include HIVElements called HE include HIVIndicatorElements called HIE // Indicator Definition parameter "Measurement Period" Interval<Date> default Interval[@2023-01-01, @2023-01-30] context Patient /* Populations */ /* *Initial Population */ define "Initial Population": true /** * Numerator * * Definition: HIV-exposed infants born within the past 12 months (or 24 months in breastfeeding settings) who have known final HIV outcome status * Calculation: COUNT of infants who are an "HIV-exposed infant or child" AND [(with an "Infant date of birth" in past 12 months) OR (with an "Infant date of birth" in past 24 months IF mothers are "Breastfeeding")] AND "Registered in birth cohort"=True AND with a "Final diagnosis of HIV-exposed infant" of NOT NULL */ define "Numerator": HIE."is HIV-exposed infant or child E.DE112" and (exists(HIE."Live Birth Delivery" B where months between end of B.effective.toInterval() and end of "Measurement Period" < 12 months) or ( exists(HIE."Breastfeeding B.DE32" B) and exists(HIE."Live Birth Delivery" B where months between end of B.effective.toInterval() and end of "Measurement Period" < 24 months) ) ) and HIE."Registered in birth cohort" and HE."Final diagnosis of HIV-exposed infant E.DE230" is not null /** * Denominator * * Definition: a) Programme-based/service delivery denominator | Number of HIV-exposed infants who were born within the 12 months (or 24 months in breastfeeding settings) prior to the reporting period and registered in the birth cohort | For example, for the reporting period January to December 2021 the denominator would be the number of HIV-exposed infants born between January to December 2020 in non-breast feeding settings and January to December 2019 in breastfeeding settings. | | b) Population-based denominator | Estimated number of HIV-positive women who delivered within the past 12 months | (or 24 months in breastfeeding settings) * Calculation: COUNT of infants who are an "HIV-exposed infant or child" AND [(with an "Infant date of birth" within past 12 months) OR (with an "Infant date of birth" within past 24 months IF mothers are "Breastfeeding")] AND "Registered in birth cohort"=True */ define "Denominator": HIE."is HIV-exposed infant or child E.DE112" and (exists(HIE."Live Birth Delivery" B where months between end of B.effective.toInterval() and end of "Measurement Period" < 12 months) or ( exists(HIE."Breastfeeding B.DE32" B) and exists(HIE."Live Birth Delivery" B where months between end of B.effective.toInterval() and end of "Measurement Period" < 24 months) ) ) and HIE."Registered in birth cohort" /* end Populations */ /* * Disaggregators */ define "Geographic Region Stratifier": HIE."By Geographic Region Stratifier" define "HIV Status Stratifier infant": HIE."HIV Status Stratifier infant" define "Stratification": HIE."HIV Status Stratifier infant".code + ':' + HIE."By Geographic Region Stratifier" Content: application/elm+xml Encoded data (70008 characters) Content: application/elm+json Encoded data (125708 characters)
% of HIV-exposed infants whose final HIV outcome status is known