| Anesthetic technique | Frequency | Percentage |
| General anaesthesia | 1110 | 65.3 |
| Spinal anesthesia | 568 | 33.4 |
| Epidural anesthesia | 5 | 0.3 |
| Local anesthesia | 17 | 1.0 |
| Total | 1700 | 100.0 |