Table 1 Preoperative baseline characteristics of 252 patients
Indicator | R Group (n = 84) | I Group (n = 84) | C Group (n = 84) | F/χ2value | p value |
|---|---|---|---|---|---|
Age (year; mean ± SD) | 42.40 ± 13.37 | 43.87 ± 13.85 | 41.08 ± 13.24 | 0.892 | 0.409a |
Male [n(%)] | 66 (78.5) | 64 (76.2) | 65 (77.3) | 0.136 | 0.934b |
BMI (kg/m2; mean ± SD) | 22.20 ± 2.88 | 22.51 ± 2.88 | 22.73 ± 2.74 | 0.764 | 0.485a |
ASA-II [n(%)] | 36 (42.9) | 41 (48.8) | 42 (50.0) | 0.987 | 0.61b |
Smoking [n(%)] | 35 (41.6) | 43 (51.1) | 37 (44.1) | 1.663 | 0.435b |
Abnormal Chest X-ray [n(%)] | 43 (51.2) | 50 (59.5) | 48 (57.1) | 1.256 | 0.486b |