Table 3.

Logistic regression analysis of associated factors for bovine viral diarrhea virus and bovine herpes virus-1 seropositivity at the animal level

Viruses		BVDV				BHV-1
Factor	Category	Odds ratio	95% CI	P- value	Odds ratio	95% CI	P- value
			Upper	Lower			Upper	Lower
Region	Central	1.56	0.99	2.54	0.056	1
	Northern	1.73	1.08	2.78	0.023	1.23	0.69	2.18	0.479
	Southern	1				3.96	2.25	6.95	0.000
Gender	Male					1
	Female					1.31	0.45	3.78	0.620
Age	Calf	1				1
	Adult	2.47	1.50	4.08	0.000	3.16	1.47	6.78	0.003
Farming type	Industrial					1
	Traditional					1.92	1.25	2.95	0.003
Breeding type	Artificial	2.06	1.30	3.26	0.002	1
	Mating	1				2.429	1.53	3.87	0.000

BVDV: Bovine viral diarrhea virus; BHV-1: Bovine herpes virus-1; CI: Confidence interval