Table 2. Postoperative features.
| Features | Group | t | P | |
|---|---|---|---|---|
| Conservative | Surgical | |||
| Hospital days (d) | 18.57±5.39 | 13.12±4.21 | 5.950 | <0.001 |
| Thoracic ICU days (d) | 5.06±1.80 | 4.02±1.41 | 3.398 | 0.001 |
| Thoracic drainage days (d) | 8.26±1.96 | 5.85±1.52 | 6.697 | <0.001 |
| PaO2 (mmHg) | 86.49±11.69 | 91.05±10.88 | 2.118 | 0.036 |
| PaCO2 (mmHg) | 39.08±2.46 | 37.80±2.86 | 2.449 | 0.014 |
| Hospitalization costs | 4,544.61±524.79 | 6,206.44±371.42 | 19.358 | <0.001 |
ICU, intensive care unit; PaO2, partial pressure of arterial oxygen; PaCO2, partial pressure of carbon dioxide.