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Field Detail
Theme Health
Code PH-SXH-1.3
Sub-theme Sexual Health (HIV/AIDS & STI)
Name STI (Chlamydia) prevalence among women receiving antenatal care
Definition Proportion of women who test positive for Chlamydia as a percentage of all women receiving antenatal care that were tested for Chlamydia in specific age categories
Calculation/Formula Number of pregnant women attending antenatal clinic who test positive for Chlamydia in a given year / Number of pregnant women that received antenatal care and were tested for Chlamydia in the year x 100
Unit of Measure %
Purpose/Rationale Pregnant women are a core population to monitor rates of STIs including HIV, as they are routinely offered diagnostic testing during antenatal care. Identification of STIs and HIV infection during pregnancy is critical for prevention of complications such as congenital syphilis, and prevention of mother-to-child transmission
Policy Linkages Pacific Regional Strategy on HIV and other STIs and Implementation Plan 2009-2013
Preferred Data Sources National Health Information System (Administrative Data) and or Chlamydia prevalence surveys
Alternative_Data Sources WHO/SPC Annual Surveillance System
Primary Data Collection System National Administrative Database - Health Information Management Systems (HIS)
Frequency of Data Collection Annual
Other agencies countries_ must report to: UNAIDS/UNGASS
SPC Responsibility - Data Management PHD
Notes STI incidence is usually reported by disease and not aggregated – Chlamydia used as the most commonly tested and reported STI.
Baseline Year 2006
Baseline value 2006 SGS: Kiribati 13%, Samoa 26.8%, Tonga 14.5% 2008 SGS: Vanuatu 25.1%
Baseline Source SGS
Target Year 2013
Target value 2013: Kiribati 7.5%, Samoa 13.4%, Tonga 7%, Vanuatu 12.5%
Data validation / quality Only for 4 PICTs, as indicated in the target column
SPC Programme PHD
Link to SPC Division Plan PHD Goal 11 - HIV&STI
Numerator Number of pregnant women attending antenatal clinic who test positive for Chlamydia in a given year
Denominator Number of pregnant women that received antenatal care and were tested for Chlamydia in the year
Factor x 100
Unit %