Table 3.
Risk factor | Categories | No. examined | No. of positives | Prevalence (%) | χ2 value | p value | OR | 95% CI |
---|---|---|---|---|---|---|---|---|
Housing system | Cage | 100 | 19 | 19.0 | 29.8 | 0.001 | 4.3 | 2.5–7.5 |
Floor | 284 | 143 | 50.4 | |||||
Total | 384 | 162 | 42.2 | |||||
| ||||||||
Management | Medium | 142 | 56 | 39.4 | 27.1 | 0.001 | 4.2 | 2.4–7.4 |
Good | 140 | 41 | 29.3 | 3.02 | 0.07 | 1.5 | 0.9–2.5 | |
Poor∗ |
∗Used as reference.