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两组患者术前肺功能的比较
Comparison of preoperative lung function between the two groups (Mean±SD, n=23)
| Group | FVC (L) | FEV1 (L) | FEV1/FVC (%) |
| FVC: Forced vital capacity; FEV1: Forced expiratory volume in one second. | |||
| Rhodiola | 3.55±0.25 | 2.81±0.25 | 79.26±5.09 |
| Control | 3.48±0.39 | 2.73±0.32 | 78.81±5.90 |
| t | 0.759 | 0.927 | 0.276 |
| P | 0.452 | 0.359 | 0.784 |
