Serological Investigations of Bluetongue Virus (BTV) among Sheep and Goats in Kassala State, Eastern Sudan

Table 3

Univariate and multivariate logistic regression analysis of selected risk factors associated with bluetongue virus in sheep and goats in Kassala state.

Risk factor		Results		Chi square	df	value
		Positive	Negative
Species	Caprine	350 (100%)	0	59.348	1	0.001
	Ovine	388 (84.5%)	71
Sex	Female	591 (92.8%)	46	9.048	1	0.003
	Male	147 (85.5%)	25
Age	6–11 months	527 (93.9%)	34	17.348	2	0.001
	1 year	189 (85.5%)	32
	>1 year	22 (81.5%)	5
Season	Rainy	451 (91.3%)	43	0.092	2	0.955
	Winter	172 (91.4) %)	16
	Summer	115 (90 6%)	12

value ≤ 0.05 is significant.