Table 1.
Demographics of the study population and intraoperative characteristics.
| Study population | Pre-HFU | HFU |
| Total patients (n) | 2117 | 660 |
| Total injuries (n) | 2178 | 673 |
| Mean age, years (SD) | 82.6 (± 9.72) | 83.8 (± 8.43) |
| Sex (male : female) | 591 : 1526 | 191 : 469 |
| Fracture type (n): | ||
| Intracapsular | 1218 | 381 |
| Intertrochanteric | 866 | 268 |
| Subtrochanteric | 83 | 24 |
| ASA grade: | ||
| 1 | 91 | 12 |
| 2 | 575 | 202 |
| 3 | 1179 | 379 |
| 4 | 302 | 76 |
| 5 | 3 | 1 |
ASA, American Society of Anesthesiologists; HFU, hip fracture unit; SD, standard deviation from the mean.