Associations between risk-adjusted hospital resource use and risk-adjusted clinical outcome in subgroup analysis
| Subgroup | Pearson correlation coefficient (95% CI); outcome | ||
|---|---|---|---|
| Mortality | Complications | Readmission | |
| Whole sample (n = 55) | −0.347 (−0.559 to −0.087) | 0.491 (0.255 to 0.666) | −0.249 (−0.481 to 0.020) |
| < 65 yr (n = 50) | −0.441 (−0.638 to −0.181) | 0.528 (0.288 to 0.700) | −0.179 (−0.434 to 0.106) |
| ≥ 65 yr (n = 55) | 0.086 (−0.184 to 0.343) | 0.356 (0.097 to 0.565) | −0.249 (−0.480 to 0.020) |
| Isolated TBI (n = 53) | 0.233 (−0.042 to 0.472) | 0.399 (0.141 to 0.602) | −0.486 (−0.666 to −0.244) |
| Severe TBI (MAIS ≥ 4) (n = 47) | −0.289 (−0.530 to 0.001) | 0.290 (0.001 to 0.531) | −0.204 (−0.462 to 0.090) |
| Level I and II trauma centres (n = 8) | −0.375 (−0.847 to 0.469) | 0.512 (−0.335 to 0.886) | −0.308 (−0.825 to 0.523) |
CI = confidence interval; MAIS = Maximum Abbreviated Injury Scale; TBI = traumatic brain injury.