Fig. 2

Fitted relationship between MAF and PfPR_0–5 when stratified by the magnitude of PfPR_0–5 decline in the 2 years preceding data collection. The top panel (a) shows the fitted relationship for all children under 5 years of age, with children located in areas where PfPR_0–5 declined by more than 5% in the 2 years preceding the survey in dark red, children located in areas where PfPR_0–5 declined by between 0 and 5% in red, and children located in areas where PfPR_0–5 increased in green. In the central panel (b) and bottom panel (c) the three decline categories are indicated by the same colours as a; b shows the relationship only amongst children aged 2 years or younger, and c shows the relationship only amongst children aged 3 or 4 years. Declines in PfPR_0–5 were extracted from annual PfPR predictions produced by Bhatt et al. [6]