Table 1 Data sources
From: The role of contraception in preventing HIV-positive births: global estimates and projections
Indicator | Description | Main Source(s) | Notes |
|---|---|---|---|
WLHIV of reproductive age | Number of WLHIV aged 15 to 49 years old, country specific data | Joint United Nations Programme on HIV and AIDS (UNAIDS), 2018 [1] | Global Health Data Exchange (GHDx) 2018 data were used where UNAIDS data were not available for 2018 [24] |
Contraception prevalence rate (CPR) | Proportion of married or in-union women using any modern method of contraception, country specific data | UN, Department of Economic and Social Affairs, Population Division, 2019 [25] | Most recent survey year data available was used |
Annual pregnancy rate (PR) | Pregnancy rate among women among women aged 15–44, sub-regional data | Sedgh et al., 2016 [26] | Pregnancies include all live births, abortions, and miscarriages |
Contraceptive method mix (CMM) | The proportion of total family planning users using each modern method of contraception, country specific data | Family Planning 2020 (FP2020), 2019 [22] | Modern methods include sterilization (female), sterilization (male), IUD, implant, injectable, pill, male condoms, and Lactational Amenorrhea Method (LAM) |
Contraceptive method-specific failure rates | Median failure rate in first 12 months of use by method | Guttmacher Institute, 2016 [23] | Uses DHS survey data from 43 countries, 1990–2013 |
ART coverage for PMTCT | Proportion of pregnant WLHIV who receive ART for PMTCT, country specific data | UNAIDS, 2018 [1] | Where 2018 UNAIDS data were not available, UNAIDS reports using 2017 and 2016 data were used [27,28,29]. Other sources include: the Centers for Disease Control and Prevention (CDC), USA [30]; Public Health England, United Kingdom [31]; Clark, 2017, Russia [32]. Countries with data still missing were set at the UNAIDS global average (0.82) |
Annual birth rate 15–49 | Annual rate of live births to women 15–49 by country & sub-region | United Nations Population Division [20] | Used age-specific fertility rates and female population by age to create weighted annual births among women 15–49 |
Proportion of births unintended | Proportion of births that arise from unintended pregnancies, country-level data | DHS Stat Compiler [21] | For countries where DHS data were not available or where DHS data pre-dated 2000, the corresponding sub-regional estimate from Bearak et al., 2018 [8] was used |