Table 1.
Characteristics of patients with pneumothorax
| Clinical factors | Total | ≤ 34 years of age, nonsmokers | ≤ 34 years of age, smokers | ≥ 55 years of age | Control group |
|---|---|---|---|---|---|
| Number of patients (%) |
138 (100) |
64 (46.4) |
21 (15.2) |
26 (18.8) |
27 (19.6) |
| Age, mean | 38 | 20 | 25 | 66 | 64 |
| Sex | |||||
| Male:Female | 118:20 | 58:6 | 21:0 | 26:0 | 13:14 |
| Laterality | |||||
| Right:Left | 71:67 | 32:32 | 9:12 | 16:10 | 14:13 |
| Smoking | |||||
| Yes:No | 62:76 | 0:64 | 21:0 | 26:0 | 15:12 |
| Asthma | |||||
| Yes:No | 16:122 | 9:55 | 4:17 | 2:24 | 1:26 |
| Bulla or bleb | |||||
| Yes:No | 106:32 | 63:1 | 20:1 | 23:3 | 0:27 |
| Intraoperative air leakage from bulla or bleb | |||||
| Yes | 43 | 17 | 8 | 18 | 0 |
| Type of surgery | |||||
| Bullectomy | 104 | 63 | 21 | 20 | 0 |
| Partial resection | 28 | 0 | 0 | 1 | 27 |
| Other | 6 | 1 | 0 | 5 | 0 |