/*
* Library: IMMZ.IND.24 Logic
* Immunization coverage for tetanus and diphtheria-containing vaccines (Td), 5th dose
* The percentage in the target population who have received a 5th dose of tetanus and diphtheria-containing vaccine (Td) during the reporting period
*
* Numerator: Number of tetanus and diphtheria-containing vaccine doses (5th dose) administered through routine services during the reporting period
* Numerator Computation: COUNT of immunization events WHERE "Vaccine type" = "Tetanus and diphtheria-containing vaccines (Td)" for the fifth dose in the primary series AND "Date and time of vaccination" is during the reporting period
* Denominator: Number in target group
* Denominator Computation: As defined by the Member States
*
* Disaggregation
* - Administrative area
* - Sex
* - Age in years
* - Age group (depending on schedule)
*
* References: WHO Immunization facility analysis guide (5)
* WHO Handbook on immunization data (6)
*
* Annotations: –
*/
library IMMZIND24Logic
using FHIR version '4.0.1'
include FHIRHelpers version '4.0.1'
include WHOCommon called WC
include IMMZCommon called Common
include IMMZConcepts called Concepts
include IMMZIndicatorElements called Elements
include IMMZD2DTDTPElements called DTP
parameter "Measurement Period" Interval<Date> default Interval[@2020-01-01, @2025-12-31]
context Patient
/*
* As defined by Member State
*/
define "Initial Population":
true
/*
@denominator: Number in target group
@pseudocode: As defined by the Member States
*/
define "Denominator":
true
/*
@numerator: Number of tetanus and diphtheria-containing vaccine doses (5th dose) administered through routine services during the reporting period
@pseudocode: COUNT of immunization events WHERE "Vaccine type" = "Tetanus and diphtheria-containing vaccines (Td)" for the fifth dose in the primary series AND "Date and time of vaccination" is during the reporting period
*/
define "Numerator":
Coalesce( DTP."Td Doses Administered to Patient".sortedIndex(4).occurrence.toInterval() starts during "Measurement Period",
false )
/*
@disaggregation: Administrative area
Sex
Age in years
Age group (depending on schedule)
*/
define "Stratification 1":
Elements."By Geographic Region Stratifier"
define "Stratification 2":
Elements."By Administrative Gender Stratifier"
define "Stratification 3":
Elements."Age Stratifier"
define "Stratification 4":
Elements."Child By Age Stratifier"