Table 4. Herd-level multivariate GLMM for associations between farm-level risk factors farms testing seropositive for Brucella spp. using logistic regression with village included as a random effect.

Variable	Odds ratio (95% CI)	P-value
CD block Jagraon East Ludhiana Payal Samrala	1 2.62 (1.29 to 5.84) 2.69 (1.19 to 5.91) 1.19 (0.53 to 2.74)	- 0.008 0.015 0.671
Species Number of cows	1.08 (1.03 to 1.15)	0.006
Disinfect at calving Always Not always	1 0.42 (0.21 to 0.81)	0.01