Table 5.
Bivariate relationships between clinical and patient characteristics and nonunion: continuous variables
| Characteristic | Number | Mean | Odds ratio | 95% CI | t-test p value |
|---|---|---|---|---|---|
| ISS | Pr(|T| > |t|) = 0.18 | ||||
| Union | 326/382 (85%) | 16.18 | 1.02 | 15.07–17.29 | |
| Nonunion | 56/382 (15%) | 18.2 | 15.11–21.28 | ||
| Age (years) | Pr(|T| > |t|) = 0.38 | ||||
| Union | 326/382 (85%) | 38.93 | 1.01 | 37.21–40.65 | |
| Nonunion | 56/382 (15%) | 40.89 | 37.59–44.19 | ||
| TRISS | Pr(|T| > |t|) = 0.09 | ||||
| Union | 311/365 (85%) | 0.954 | 0.19 | 0.942–0.966 | |
| Nonunion | 54/365 (15%) | 0.922 | 0.873–0.971 | ||
| ICU days | Pr(|T| > |t|) = 0.39 | ||||
| Union | 311/365 (85%) | 2.99 | 1.01 | 2.14–3.84 | |
| Nonunion | 54/365 (15%) | 4 | 1.49–6.50 |
CI = confidence interval; ISS = Injury Severity Score; TRISS = Trauma and Injury Severity Score; ICU = intensive care unit.