TABLE 2.
Univariable results of effect of shade treatment and site on environmental survival times of M. avium subsp. paratuberculosisa
| Parameter | Cattle |
Sheep |
||||
|---|---|---|---|---|---|---|
| Median survival time (days) | Hazard ratiob | P value | Median survival time (days) | Hazard ratio | P value | |
| Shade treatment | 0.001 | <0.001 | ||||
| Exposed | 7 (IE) | 8.65 (2.65, 39.58) | 20 (IE) | 14.25 (4.58, 54.56) | ||
| Shaded | 54 (33, 62) | 1.00 | 82 (62, 96) | 1.00 | ||
| Site | 0.53 | 0.70 | ||||
| Armidale | 41.0 (7, 76) | 1.00 | 75.5 (20, 96) | 1.00 | ||
| Bathurst | 20.0 (7, 47) | 1.47 (0.53, 4.09) | 61.5 (7, 96) | 1.05 (0.38, 2.86) | ||
| Condobolin | 20.0 (7, 62) | 1.14 (0.40, 3.19) | 41.0 (20, 76) | 1.70 (0.60, 4.81) | ||
| Broken Hill | 7.0 (7, 20) | 2.08 (0.73, 5.93) | 33.5 (7, 62) | 1.48 (0.51, 4.17) | ||
a
Data in parentheses are 95% confidence intervals. IE, inestimable.
b
Cox proportional hazard of death ratio.