Table 4.
Variables retained in the final multivariable models. Model 1 includes associations between criteria available on admission (signalment, history, clinical signs, and initial hematology) and survival in adult horses with botulism. Model 2 includes associations between criteria from hospitalization (treatment, clinical course, and complications) and survival in adult horses with botulism
| Variable | Nonsurvivors (n = 48) n (%) Median (IQR) | Survivors (n = 44) n (%) Median (IQR) | Adjusted OR | 95% CI | P‐Value |
|---|---|---|---|---|---|
| Model 1 | |||||
| Temperature | 100.2 (99.1–101.4) | 101.2 (100.8–101.8) | 1.94 | 1.19–3.17 | .008 |
| Dysphagia | |||||
| No | 18 (37.5) | 5 (11.4) | Reference | ||
| Yes | 30 (62.5) | 39 (88.6) | 4.04 | 1.01–16.17 | .049 |
| Abnormal respiratory effort | |||||
| No | 34 (70.8) | 42 (95.5) | Reference | ||
| Yes | 14 (29.2) | 2 (4.6) | 0.07 | 0.01–0.65 | .019 |
| Model 2 | |||||
| Antitoxin treatment | |||||
| No | 18 (38.3) | 2 (4.6) | Reference | ||
| Yes | 29 (61.7) | 42 (95.5) | 121.30 | 9.94–1,480.65 | <.001 |
| Sustained recumbency | |||||
| No | 8 (16.7) | 35 (79.6) | Reference | ||
| Yes | 40 (83.3) | 9 (20.5) | 0.01 | 0.00–0.08 | <.001 |
IQR, interquartile range; OR, odds ratio; CI, confidence interval.