4.1 Data collection

This study utilized data from the women’s file of the 2021 Burkina Faso Demographic and Health Survey (DHS), the fifth Demographic and Health Survey of Burkina Faso (EDSBF-V) carried out by the National Institute of Statistics and Demography (INSD) in collaboration with the National Institute of Public Health (INSP) from July 30 to November 30, 2021. The survey protocols, including all data collection tools, measurement procedures, and biological tests, were examined and approved by the National Ethics Committee of Burkina Faso and the Ethics Committee (Institutional Review Board) of International Coaching Federation (ICF). The 2019 Burkina Faso mapping base prepared by INSD for the General population and housing census in 2019 (RGPH 2019), constituted the sampling frame for drawing the study sample. The mapping base is a complete list of enumeration areas (EAs) which were created for the purposes of the census. It contains 23,663 ZDs and information on their identifier, their place of residence (urban or rural) and their household size counted, and their population recorded. Each ZD has a map delimiting its position and limits with documents of description.

The sampling frame was designed to ensure adequate representativeness of the main indicators (apart from adult mortality and maternal mortality) It was a stratified, two-stage area survey. The urban part and the rural part of each region correspond to a sampling stratum. In total, 26 sampling strata were created. The first stage of sampling included 195 clusters located in urban areas and 405 in rural areas selected to be mapped and investigated. At the end of the first-degree draw, a mapping and household enumeration operation was carried out. This operation, which targeted all 600 clusters, was finally carried out in 572 clusters, which made it possible to establish a situation plan and a sketch. The listing of households in the sample clusters was carried out using tablets, which also made it possible to record the GPS coordinates of the clusters and concessions. At the second level, 32 households per cluster in the Sahel region and 26 households in all other regions were systematically sampled. In the selected households, all women aged 15–49 years living there, or having spent the night before the interview, were eligible to take part in the survey. The 2019 Burkina Faso mapping base prepared by INSD for the General population and housing census in 2019 (RGPH 2019), constituted the sampling frame for drawing the study sample. The mapping base is a complete list of enumeration areas (EAs) which were created for the purposes of the census. It contains 23,663 ZDs and information on their identifier, their place of residence (urban or rural) and their household size counted, and their population recorded. Each ZD has a map delimiting its position and limits with documents of description.

The sampling frame was designed to ensure adequate representativeness of the main indicators (apart from adult mortality and maternal mortality) It was a stratified, two-stage area survey. The urban part and the rural part of each region correspond to a sampling stratum. In total, 26 sampling strata were created. The first stage of sampling included 195 clusters located in urban areas and 405 in rural areas selected to be mapped and investigated. At the end of the first-degree draw, a mapping and household enumeration operation was carried out. This operation, which targeted all 600 clusters, was finally carried out in 572 clusters, which made it possible to establish a situation plan and a sketch. The listing of households in the sample clusters was the carried out using tablets which also made it possible to record the GPS coordinates of the clusters and concessions. At the second level, 32 households per cluster in the Sahel region and 26 households in all other regions were systematically sampled. In the selected households, all women aged 15–49 years living there, or having spent the night before the interview, were eligible to take part in the survey. Visit https://dhsprogram.com/methodology/survey/survey-display-562.cfm for additional information on data collection. The underlying data for this study can be directly accessed at https://doi.org/10.5683/SP3/NADI8G