Demographic data of the study population
| Variable | Total (n=15 895) | Hypothermic patients (n=3348) | Normothermic patients (n=10 517) | Hyperthermic patients (n=786) | p Value |
|---|---|---|---|---|---|
| Age, mean (SD); [median] | 57.8 (21.1); [61] | 60.3 (20.5); [64] | 57.2 (21.1); [60] | 56.3 (20.3); [60] | <0.001 |
| Sex, male (%) | 57.3 | 59.9 | 55.5 | 62.1 | <0.001 |
| Temperature, mean (SD); [median] | 36.5 (0.8); [36.5] | 35.6 (0.5); [35.8] | 36.7 (0.4); [36.6] | 38.8 (0.6); [38.6] | <0.001 |
| Transfused (%) | 8.2 | 9.7 | 7.2 | 9.4 | <0.001 |
| PRBC total, mean amount | 0.6 | 0.7 (4.3) | 0.5 (3.0) | 0.6 (4.1) | <0.001 |
| PRBC during the first 24 h, mean (SD) | 0.8 (2.8) | 1.1 (3.2) | 0.5 (1.8) | 0.2 (0.9) | 0.001 |
| PRBC day 2, mean (SD) | 1.5 (3.6) | 1.8 (4.1) | 1.1 (2.6) | 0.8 (1.6) | 0.042 |
| PRBC day 3, mean (SD) | 2.2 (4.3) | 2.5 (4.8) | 1.7 (3.3) | 1.2 (1.8) | 0.05 |
| Systolic BP (mm Hg) | 140 | 139 | 141 | 135 | <0.001 |
| GCS, mean (SD); [median] | 12.8 (4.3); [15] | 12.3 (4.5); [15] | 13.2 (3.9); [15] | 12.7 (4.1); [15] | 0.001 |
| ICU admission (%) | 14 | 12.7 | 14.3 | 15.6 | 0.292 |
| LOS (days), mean (SD); [median] | 8.6 (12.3); [4.9] | 8.7 (12.4); [4.7] | 8.4 (11.7); [4.8] | 10.1 (13.3); [6.2] | <0.001 |
| Mortality (%) | 5.1 | 7.4 | 3.4 | 4.1 | <0.001 |
BP, blood pressure; GCS, Glasgow Coma Scale; ICU, intensive care unit; LOS, length of stay; PRBC, packed red blood cell.