Objectives: To examine the association between maternal media exposure and childhood anemia in three sub-Saharan African countries, and to develop a two-stage multiple imputation approach for substantial hemoglobin outcome missingness in Demographic and Health Survey (DHS) data. Design: Multi-country cross-sectional analysis of nationally representative DHS data. Setting: Community-based household surveys in Ghana (2022), Nigeria (2023-24), and Tanzania (2022). Participants: 42,944 children aged 6-59 months across 2,621 clusters. Primary and secondary outcome measures: The primary outcome was anemia (altitude-adjusted hemoglobin