Table 3.
Retrospective case control logistic regression modelling of factors associated with mortality of calves up to 43 days of age. Final model is presented.
| Variable (n = no. of calves) | OR | Confidence interval 95% | P-value |
|---|---|---|---|
| SAA (mg/l)a | 1.013 | 1.001; 1.026 | 0.041 |
| GGT (IU/l)a | 0.993 | 0.988; 0.998 | 0.004 |
| Birth weight (kg) | 0.762 | 0.607; 0.957 | 0.019 |
| Multiparous (n = 23) | 1.0 | – | – |
| Primiparous (n = 40) | 0.111 | 0.017; 0.731 | 0.022 |
n (observations) = 63 (the case group (n = 14) and the control group (n = 49)), SAA = Serum amyloid A, GGT = gamma glutamyltransferase.
a
Sample collected first week of life.