Table 1. Preoperative clinical characteristics.
Characteristic | Number of patients (n=476) | Percentage |
---|---|---|
Gender | ||
Male | 376 | 79 |
Female | 100 | 21 |
Smoking | ||
Yes | 299 | 62.8 |
Present | 121 | 25.4 |
Past | 178 | 37.4 |
No | 177 | 37.2 |
Preoperative weight loss | 40 | 8.4 |
Previous thoracic surgery | 4 | 0.8 |
Hypertension | 183 | 38.4 |
Coronary artery disease | 95 | 20 |
Diabetes mellitus | 69 | 14.5 |
History of CVA/TIA | 31 | 6.5 |
COPD | 57 | 12 |
BMI | ||
<30 | 450 | 94.5 |
≥30 | 26 | 5.5 |
Pulmonary function (FEV1%) | ||
<70 | 178 | 37.4 |
≥70 | 298 | 62.6 |
ASA score | ||
1-2 | 296 | 62.2 |
3-4 | 180 | 37.8 |
CCI | ||
0 | 222 | 46.6 |
1 | 143 | 30 |
2 | 82 | 17.2 |
3 | 25 | 5.3 |
4 | 4 | 0.8 |
CVA, cerebrovascular disease; TIA, transient ischemic attack; COPD, chronic obstructive pulmonary disease; BMI, body mass index; FEV1%, forced expiratory volume as a percentage of forced vital capacity; ASA, American Society of Anesthesiology; VATS, video-assisted thoracic surgery; CCI, Charlson comorbidity Index.