Dataset for: Dietary staple protein quality and meningitis mortality across 54 African countries: an ecological cross-sectional study

Country-level dataset for 54 African countries comprising the primary outcome (meningitis cause fraction, GBD 2023), disease covariates (diarrhoea, malaria, HIV cause fractions, GBD 2023), care variables (household air pollution, unsafe sanitation, SDI, HiB3, PCV3, GBD 2023), and dietary variables (animal protein, staple protein supply for wheat, rice, maize, millet, sorghum and cassava, FAOSTAT food balance sheets 2019–2023). Used in beta regression analysis of dietary staple protein quality and meningitis mortality. Includes a data dictionary sheet defining all variables.