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Comparison of operative times for surgical cases performed in the first and second halves with each surgical approach.
| Variable | Overall | Early phase | Late phase | P value |
|---|---|---|---|---|
| Open | 223.5 ± 100.4 | 231.9 ± 11.2 | 214.8 ± 86.9 | 0.48 |
| VATS | 161.1 ± 82.5 | 168.6 ± 83.6 | 154.1 ± 80.9 | 0.39 |
| Robotic | 187.5 ± 78.3 | 198.6 ± 78.2 | 177.2 ± 77.0 | 0.32 |
