Table 2 Estimates for coefficients and their 95% confidence for fecal shedding of Mycobacterium avium subsp. paratuberculosis in final General Linearized Model (GLM) with and without the interaction term for start day*susceptibility status
Model | Model coefficient (code) | Estimate (day−1) | p value | 95% confidence interval | AIC value for model fit |
|---|---|---|---|---|---|
Final model with no interaction between susceptibility and day | Â | Â | Â | Â | 530.67 |
|  | Susceptibility status (C1) | 1.41 | < 0.001 | 1.05, 1.77 |  |
|  | Time since group housing (C2) | − 0.027 | < 0.001 | − 0.035, − 0.019 |  |
|  | Infectiousness of contact exposed calves (C0) | − 1.84 | < 0.001 | − 2.21, − 1.47 |  |
Model including interaction between susceptibility and day | Â | Â | Â | Â | 527.86 |
|  | Susceptibility status (C1) | 2.08 | < 0.001 | 1.37,2.79 |  |
|  | Time since group housing (C2) | − 0.014 | 0.033 | − 0.028, − 0.001 |  |
|  | Interaction (C5) | − 0.019 | 0.028 | − 0.036, − 0.002 |  |
|  | Infectiousness of contact exposed calves (C0) | − 2.26 | < 0.001 | − 2.82, − 1.71 |  |