Local topographic wetness indices predict household malaria risk better than land-use and land-cover in the western Kenya highlands

Table 1 Correlation coefficients and their p-values for the associations between topographic and human-modified variables in Kipsamoite and Kapsisiywa.

	Distance to very wet	Distance to very dry	Min. wetness within 150 m	Sum of wetness within 500 m to 1 km	Max. wetness within 1 km	Elevation
Distance to reclaimed swamp	0.35 < 0.0001	-0.19 < 0.0001	-0.40 < 0.0001	-0.40 < 0.0001	-0.40 < 0.0001	0.69 < 0.0001
Distance to natural swamp	0.79 < 0.0001	0.26 < 0.0001	-0.39 < 0.0001	-0.58 < 0.0001	-0.79 < 0.0001	0.49 < 0.0001
Trees (500 m)	-0.02 0.5053	-0.13 < 0.0001	-0.16 < 0.0001	-0.16 < 0.0001	-0.05 0.1090	0.09 0.0042
Farmland (500 m)	0.64 < 0.0001	0.01 0.6967	-0.53 < 0.0001	-0.67 < 0.0001	-0.68 < 0.0001	0.66 < 0.0001
Tea (50 m)	-0.13 < 0.0001	-0.01 0.6446	0.12 < 0.0001	0.14 < 0.0001	0.15 < 0.0001	-0.16 < 0.0001
Pasture (500 m)	0.09 0.0028	0.13 < 0.0001	0.09 0.0022	0.15 < 0.0001	-0.02 0.4692	-0.03 0.2781
Houses (50 m)	0.00 0.9997	0.07 0.0238	0.11 0.0002	0.09 0.0033	0.05 0.1215	-0.15 < 0.0001
Distance to road	-0.11 0.0004	0.07 0.0198	0.21 < 0.0001	0.14 < 0.0001	0.10 0.0006	-0.36 < 0.0001