/**
* Library: HIV.IND.30 Logic
* Ref No: ART.4
* Short Name: New ART patients
*
* Definition: Number of people living with HIV who initiated ART
*
* Numerator: Number of people living with HIV who initiated ART in accordance with national treatment guidelines during the reporting period
* Numerator Calculation: COUNT of clients with "HIV status"='HIV-positive' AND "On ART"=True AND "ART start date" is within reporting period
* Numerator Exclusions:
*
* Denominator: 1
* Denominator Calculation: 1
* Denominator Exclusions:
*
* Disaggregations:
* • Gender (female, male, other*)
* • Age (0–4, 5–9, 10–14, 15–19, 20–24, 25–49, 50+ years)**
* • Key populations (men who have sex with men, people living in prisons and other closed settings, people who inject drugs, sex workers, trans and gender diverse people)***
* • Other priority populations
* • Cities and other administrative regions of epidemiologic importance
*
* Disaggregation Elements: Gender | Age | Key population member type | Other priority populations
*
* Numerator and Denominator Elements:
* ART start date
* HIV status
* On ART
*
* Reference: Consolidated guidelines on person-centred HIV strategic information: strengthening routine data for impact. Geneva: World Health Organization; 2022
*
* Data Concepts:
* HIV.A.DE17: Age | Calculated age (number of years) of the client based on date of birth
* HIV.A.DE18: Gender* | Gender of the client*
* HIV.A.DE19: Female | Client identifies as female
* HIV.A.DE20: Male | Client identifies as male
* HIV.A.DE21: Transgender male | Client identifies as transgender male
* HIV.A.DE22: Transgender female | Client identifies as transgender female
* HIV.A.DE23: Other | Additional category
* HIV.B.DE50: Key population member type* | The type of key population that the client is included in
* HIV.B.DE51: Sex worker | Client is a sex worker
* HIV.B.DE52: Men who have sex with men | Client is a man who has sex with men
* HIV.B.DE53: Trans and gender-diverse people | Client identifies as trans and gender-diverse
* HIV.B.DE54: People who inject drugs | Client is a person who injects drugs
* HIV.B.DE55: People living in prisons and other closed settings | Client lives in a prison or another closed setting
* HIV.B.DE72: ART start date | The date on which the client started or restarted antiretroviral therapy (ART)
* HIV.B.DE115: HIV status | HIV status reported after applying the national HIV testing algorithm. No single HIV test can provide an HIV-positive diagnosis.
* HIV.B.DE116: HIV-positive | Client is HIV-positive
* HIV.B.DE117: HIV-negative | Client is HIV-negative
* HIV.B.DE118: Unknown | Client has unknown HIV status
* HIV.D.DE38: On ART | Client is currently taking ART
* HIV.D.DE39: ART start date | The date on which the client started or restarted ART
* HIV.E.DE114: Key population member type* | The type of key population that the infant's mother is included in
* HIV.E.DE115: Sex worker | Infant's mother is a sex worker
* HIV.E.DE116: People who inject drugs | Infant's mother is a person who injects drugs
* HIV.E.DE117: Trans and gender-diverse people | Infant's mother identifies as trans and gender-diverse
* HIV.E.DE118: People living in prisons and other closed setting | Infant's mother is in a prison or closed setting
* HIV.H.DE47: On ART | Client is currently taking ART
* HIV.SRV.DE6: ART start date | The date on which the client started or restarted antiretroviral therapy (ART)
* HIV.Config.DE19: Other priority populations | Other populations of priority of HIV prevention and care in local context (provided during adaptation)
*
* Additional Context
* - what it measures: This indicator measures the expansion of ART programmes.
* - rationale: • Monitoring trends in new ART patients provides managers with important information for forecasting the need for ARV and allocation of staff to ensure quality of care for ART. | • Initiation of ART is one of the sentinel events for HIV surveillance.
* - method: HIV patient monitoring tools (for example, patient records/EMRs, ART registers). | | The recommended reporting period is 12 months.
*
* Suggested Scoring Method: continuous-variable | http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cv-measure-cqfm
*/
library HIVIND30Logic
// 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
define "Measure Population":
HIE."Has HIV-positive Status"
and (date from start of HE."First On ART".effective.toInterval() during "Measurement Period")
/*
* As defined by Member States
*/
define "Initial Population":
true
/*
* NOTE: Modeled as a Continuous Variable measure because this is an estimated denominator proportion measure
*/
define function "Measure Observation"(Patient "Patient"):
1
/*
* Disaggregators
*/
define "Administrative Gender Stratifier":
HIE."By Administrative Gender Stratifier"
define "Age Stratifier":
HIE."By Age Stratifier"
define "Geographic Region Stratifier":
HIE."By Geographic Region Stratifier"
define "patientGroups Stratifier":
HIE."patientGroups"
define "Stratification":
HIE."By Administrative Gender Stratifier".code
+ ':' + HIE."By Age Stratifier"
+ ':' + HIE."By Geographic Region Stratifier"
+ Combine(HIE.patientGroups, ':')
|