Logistic regression models evaluating the OR of ICUbb based on age, ISS, CCI score, and Delayed ICU transfer
| OR (95% CI) | P value | |
| Age | 1.02 (1.01 to 1.03) | <0.01 |
| ISS | 1.05 (1.03 to 1.07) | <0.01 |
| CCI | 1.12 (1.04 to 1.20) | <0.01 |
| Delayed transfer | 0.16 (0.06 to 0.44) | <0.01 |
CCI, Charlson Comorbidity Index; ICUbb, intensive care unit bounce back; ISS, Injury Severity Score.