Fig. 4
From: Effect of transmission intensity on hotspots and micro-epidemiology of malaria in sub-Saharan Africa
Fine-scale geographical correlation of mean age (months) against malaria positive fraction (MPF) for each study dataset plotted against overall study MPFs (as a proxy for transmission intensity). a, b and c show 1 × 1, 2 × 2, and 4 × 4 km2 grids respectively. The test of heterogeneity between studies was I 2 = 55.9%, p = 0.002; I 2 = 53.5%, p = 0.005; and I 2 = 31.6%, p = 0.104 respectively