Spatial statistical and environmental correlation analyses on vector density, vector infection index and Japanese encephalitis cases at the village and pigsty levels in Liyi County, Shanxi Province, China

Table 4 Results of Poisson regression in model 3.2

Factor	Coefficient	95% confidence intervals		Hypothesis test		Model omnibus test
Factor	Coefficient	Lower limit	Upper limit	Wald chi-square	Sig	Likelihood ratio chi-square	Sig
Intercept	− 1.170	− 1.817	− 0.523	12.571	< 0.001	9.429	0.009
VVII	1.345	0.633	2.056	13.724	< 0.001
Wheat area	0.6	0.318	0.881	17.436	< 0.001

ISSN: 1756-3305