Prevalence of Bovine Schistosomiasis and Associated Risk Factors in Tis Abay District, Northwest Ethiopia

Table 2

Univariable and multivariable logistic regression analysis of risk factors for bovine schistosomiasis.

Factors	Category	No. of examined	No. positive (%)	COR (95% CI)	value	AOR (95% CI)	p value
Study area	Dasra	134	30 (22.4)	8.37 (3.14–22.31)	0.0001	3.47 (1.14–10.61)	0.029
	Y/zemocha	100	15 (15.0)	5.12 (1.79–14.59)	0.002	6.00 (2.11–17.10)	0.001
	Magi	150	5 (3.3)	Ref	Ref	Ref	Ref
Sex	Female	213	36 (16.9)	Ref	Ref	Ref	Ref
	Male	171	14 (8.2)	0.54 (0.29–1.02)	0.059	0.79 (0.38–1.62)	0.524
Breed	Local breed	238	25 (10.5)	Ref	Ref	Ref	Ref
	Crossbreed	146	25 (17.1)	1.60 (0.88–2.91)	0.121	3.51 (1.40–8.76)	0.007
Age	≤2 y	88	4 (4.5)	Ref	Ref	Ref	Ref
	3-4 y	149	12 (8.1)	2.48 (0.68–9.05)	0.169	2.54 (0.63–10.22)	0.187
	≥5 y	147	34 (23.1)	8.85 (2.63–29.76)	0.0001	5.78 (1.64–20.34)	0.006
BCS	Good	155	4 (2.6)	Ref	Ref	Ref	Ref
	Medium	167	23 (13.8)	0.25 (0.056–0.49)	0.0001	0.35 (0.16–0.78)	0.011
	Poor	62	23 (37.1)	0.031 (0.01–0.11)	0.0001	0.04 (0.01–0.16)	0.0001
Management system	Extensive	218	39 (17.9)	Ref	Ref	Ref	Ref
	Semi-intensive	114	11 (9.7)	0.49(0.24–0.99)	0.05	2.24 (1.30–4.18)	0.0019
	Intensive	52	0 (0)	—	—	—	—

χ²: chi-square, BCS: body condition score, Ref: variable used as reference, and CI: confidence interval.