Factor | BRSV | Relative risk (RR) | Confidence interval (CI) (95%) | p value | |||
---|---|---|---|---|---|---|---|
Positive | Negative | Limit inferior | Limit superior | ||||
Age group | > 12 months (adult) | 775 | 116 | 1.44 | 1.32 | 1.57 | < 0.0001 |
≤12 months (calf) | 213 | 139 | |||||
BoHV-1 | Seropositive | 565 | 85 | 1.22 | 1.15 | 1.29 | < 0.0001 |
Seronegative | 423 | 170 | |||||
BVDV-1 | Seropositive | 298 | 33 | 1.19 | 1.13 | 1.25 | < 0.0001 |
Seronegative | 690 | 222 |