Demographic data for the three study groups
| Group TAP (N=24) | Group GA (N=24) | Group SAB (N=24) | P value | |
| Age (years) | 46 (31–53) | 45 (30–58) | 40 (32–50) | 0.781 |
| Side of hernia (right /left) | 13/11 | 16/8 | 16/8 | 0.587 |
| Reducibility of hernia (yes/no) | 14/10 | 14/10 | 17/7 | 0.269 |
| Surgeon’s experience (<3/>3 years) | 15/9 | 22/2 | 17/7 | 0.131 |
| Baseline COMI-hernia | 3.6 (2.9 to 4.3) | 2.2 (1.6 to 2.7) | 2.1 (1.7 to 2.5) | 0.001* |
Values are expressed as median (IQR) for age. Side, reducibility of hernia, and surgeon’s experience are expressed as ratios. Baseline COMI-hernia expressed as mean (95% CI).
COMI, Core Outcome Measures Index; GA, general anesthesia; SAB, subarachnoid block; TAP, transverse abdominis plane block.