Table 2.

Summary of the final multivariable model to assess the prevalence and associated factors with Campylobacter fetus subsp. venerealis infection in bulls in Rio Grande do Sul-Brazil cattle farms

Variables*	Estimate (SE‡)	Odds ratio (95% CI §)	Prevalence	P-value
Intercept	− 0.4 (0.5)	-	-	-
Natural service				0.021
No	-	1	19.7%
Yes	1.27 (0.55)	3.57 (1.21–10.8)	46.6%
Cfv test†				0.023
No	-	1	62.1%
Yes	− 2.53 (1.22)	0.08 (0.003–0.71)	11.5%
Number of bulls	0.017 (0.016)	-	-	0.23

*The variance inflation factor (VIF) was lower than two for all variables in the final model

^†Cfv Campylobacter fetus subsp. venerealis

^‡SE standard error

^§CI confidence interval