Table 2. Significant spatial clusters (either unexpectedly high or low numbers) of Schistosoma haematobium infections identified by the Kulldorff spatial scan statistic (p<0.05) across the study area (see Figure 2).

Cluster Number	Radius (km)	Log-Likelihood	P-value	Prevalence (%)	Relative Risk
1	0.95	16.54	<0.001	84.6	5.63
2	2.68	65.5	<0.001	50	4.66
3	1.19	30.15	<0.001	49.2	4.53
4	1.96	14.89	0.002	41.9	2.99
5	2.93	17.2	<0.001	0.76	0.05