Fig. 5: Statistically significant malaria high-risk (hotspot) clusters and low-risk (cold spot) clusters.

Colours indicate different types of clusters: brown colour—hotspot clusters of health facilities with higher risk surrounded by areas of relatively lower risk; light to blue—cold spot clusters of lower risk than the surrounding areas. Shades of each colour represent the corresponding significance of results (i.e. white—non-significant); progressively darker depending on how small their p values are.