Table 1.

Adjusted relative risks and 95% confidence intervals for the associations between Japanese encephalitis virus outbreaks and each landscape feature as derived from the best fitting inhomogeneous Poisson model. Each landscape feature is adjusted for all others in the model.

Landscape feature	Relative risk	95% confidence interval	p-value
Ardeidae richness	2.51	1.003–6.284	0.023
(Ardeidae richness)2	0.91	0.823–0.995	0.018
Temporary surface water present 1 to 3 months (%)	1.08	1.023–1.135	0.002
(Temporary surface water present 1 to 3 months)2 (%)	0.99	0.998–0.999	0.013
Hydrological flow accumulation (per 100 1 km2 land parcels of accumulation)	1.001	1.0001–1.003	0.017
Distance to waterway (per 1 km)	0.91	0.844–0.977	0.005
Cultivated land area fraction (%)	1.03	1.017–1.039	<0.00001
Mean grassland RCC⁎	7.57	1.786–32.113	0.003

^⁎Related circumscribing circle.