Study design and participants
SECONDARY
The study protocol and design of the SELEVER trial have been previously reported and are available online (Gelli, Becquey, et al., The two primary reference age groups in the SELEVER trial included women aged 15−49 years with at least one child aged 2−4 years at baseline and their (index) child aged 2−4 years at baseline. Women were eligible for inclusion if they resided permanently in the targeted villages, were aged 15−49 years and had at least one (index) child aged 2−4 years living in the same household. A secondary reference age group, including index children's younger siblings (aged 6−24 m at baseline), was used for exploratory analyses. The Comite de Recherche en Sante MS/MRSI in Burkina Faso (N°2016‐12‐142) and the Institutional Review Board of the International Food Policy Research Institute DC (approved 26/12/2016, ref: IRB00007490) approved the study protocol. All participants provided written informed consent prior to the survey interviews.