Table 3.

Results of multivariate Generalized Linear Mixed Model (for domestic dogs and buffalo) and Generalized Linear Model (for lions) analysis of risk factors for seropositivity

Species	Predictor	Unit	Estimate	SE	z-score	P-value	OR (95% CI)
Domestic dogs	Intercept		−6·303	0·983	−6·411	<0·001	NA
n = 314	Age	Months	0·04	0·01	3·975	<0·001	1·041 (1·020, 1·062)
	Area	West	−	−	−	−	1
		Loliondo	2·705	0·951	2·846	0·004	14·95 (2·321, 96·33)
		NCA	4·168	0·866	4·812	<0·001	64·61 (11·83, 353·0)
	Soil pH	≤7	−	−	−	−	1
		>7	2·5	0·587	4·256	<0·001	12·17(3·850, 38·46)
Buffalo	Intercept		−1·946	0·617	−3·153	0·002	NA
n = 49	Soil pH	≤7	−	−	−	−	1
		>7	2·314	0·754	3·067	0·002	10·11 (2·305, 44·35)
Lion	Intercept		−1·840	0·678	−2·715	0·007	NA
n = 245	Age		0·910	0·204	4·462	<0·001	2·483 (1·665, 3·703)
	Soil pH	≤7	−	−	−	−	1
		>7	1·166	0·498	2·342	0·019	3·210 (1·209, 8·520)

OR, odds ratio; CI, confidence intervals; NCA, Ngorongoro Conservation Area.