Characteristics of patients before and after project implementation
| Baseline | Implementation | P value | |||
| N=8411 | % | N=8090 | % | ||
| Average age (years) | 50.4±13.9 | 50.5±13.8 | 0.66 | ||
| Average surgical case time (min) | 314.5±131.7 | 316.6±137.8 | 0.32 | ||
| Gender (% male) | 3833 | 45.6 | 3604 | 44.5 | 0.19 |
| Hospital 1 | 5140 | 61.1 | 4853 | 60.0 | <0.001 |
| Hospital 2 | 2249 | 26.7 | 2421 | 29.9 | |
| Hospital 3 | 875 | 10.4 | 615 | 7.6 | |
| Hospital 4 | 147 | 1.7 | 201 | 2.5 | |
| ASA PS 1 | 1110 | 13.2 | 1067 | 13.2 | 0.182 |
| ASA PS 2 | 4632 | 55.1 | 4540 | 56.1 | |
| ASA PS 3 | 2431 | 28.9 | 2264 | 28.0 | |
| ASA PS 4 | 203 | 2.4 | 191 | 2.4 | |
| ASA PS 5 | 0 | 0 | 4 | 0.05 | |
| 8376 | 8066 | ||||
| Breast | 277 | 3.3 | 340 | 4.2 | <0.001 |
| Cardiac surgery | 124 | 1.5 | 124 | 1.5 | |
| Cardiology | 18 | 0.2 | 9 | 0.1 | |
| Dentistry | 22 | 0.3 | 11 | 0.1 | |
| Gastroenterology | 17 | 0.2 | 25 | 0.3 | |
| General surgery | 1541 | 18.3 | 1356 | 16.8 | |
| Genitourology | 646 | 7.7 | 604 | 7.5 | |
| Gynaecology | 423 | 5.0 | 410 | 5.1 | |
| Gynecologyoncology | 270 | 3.2 | 323 | 4.0 | |
| Neurosurgery | 1542 | 18.3 | 1534 | 19.0 | |
| Orthopaedic | 1393 | 16.6 | 1461 | 18.1 | |
| OHNS | 884 | 10.5 | 749 | 9.3 | |
| Plastic surgery | 481 | 5.7 | 367 | 4.5 | |
| Thoracic surgery | 164 | 1.9 | 177 | 2.2 | |
| Transplant | 190 | 2.3 | 171 | 2.1 | |
| Vascular surgery | 193 | 2.3 | 196 | 2.4 | |
| 8185 | 7857 | ||||
ASA PS, American Society of Anesthesiologists Physical Status score; OHNS, otolaryngology head and neck surgery.