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Comparison between operation time in the LP and OP groups
| Variable | Operation time, median (range) [min] | ||
|---|---|---|---|
| Procedures 1–31 | Procedures 32–63 | Procedures 64–95 | |
| LP group | 127.5 (90–180) | 116 (80–225) | 95 (70–220) |
| OP group | 100 (40–130) | 100 (50–185) | 90 (55–165) |
| P-value | < 0.05 | < 0.05 | > 0.05 |
