Fig. 2

Flow chart outlining the model constructing, fitting, and validating process of the health and development indicators. (a) The DHS geolocated household survey dataset of iron tablets or syrup received during antenatal care visits. (b) Geospatial covariates stack at the 1 × 1 km resolution. (c) Prediction (mean) surface for antenatal iron or syrup coverage at the 5 km × 5 km resolution. (d) Uncertainty (standard deviation) for antenatal iron or syrup coverage at the 5 km × 5 km resolution.