Table 2.
Binomial logistic regression analyses of risk factors associated with Coxiella burnetii-seropositive cattle herds sampled for national surveillance programs in Estonia during 2012–2013.
| Variable | n/N 3 | Odds Ratio (95% CI 4) | p-Value | ANOVA p-Value |
|---|---|---|---|---|
| Production type | ||||
| Beef cattle | 12/180 | 1 | <0.001 | |
| Dairy cattle | 88/324 | 5.40 (2.07–14.04) | <0.001 | |
| No. of animals 5 | 1.007 (1.001–1.013) | 0.016 | <0.001 | |
| Region | ||||
| Southwest | 14/156 | 1 | <0.001 | |
| Southeast | 25/99 | 3.80 (1.75–8.22) | <0.001 | |
| Northeast | 40/121 | 4.60 (2.24–9.41) | <0.001 | |
| Northwest | 21/128 | 2.46 (1.13–5.39) | 0.024 | |
| Interaction 6 | ||||
| Beef cattle herds: No. of animals | 1 | 0.114 | ||
| Dairy cattle herds: No. of animals | 0.99 (0.99–1.00) | 0.100 |
3 number of herds (n) with at least one CB antibody positive result and number of tested herds (N); 4 95% confidence intervals (95% CI); 5 total number of animals in the herd (No. of animals); 6 interaction between production type and total number of animals in the herd