Characteristics of smokers with resectable NSCLC (n = 140) grouped by histological subtype
| Characteristic | Squamous cell carcinoma (n = 86) | Non-squamous cell carcinoma (n = 54)* | p value |
|---|---|---|---|
| Values are expressed as mean (SE) where appropriate. | |||
| *Adenocarcinoma (n = 50), large cell carcinoma (n = 4). | |||
| Sex (F/M) | 9/77 | 9/45 | 0.42 |
| Age (years) | 70.7 (5.8) | 69.2 (4.5) | 0.22 |
| Smoking history (pack years) | 47.9 (8.7) | 46.0 (7.6) | 0.72 |
| Ex-smokers, n (%) | 51 (59.4%) | 34 (63.0%) | 0.79 |
| Years since quitting | 10.9 (4.1) | 12.7 (3.5) | 0.49 |
| Lung function: | |||
| Patients with COPD | |||
| FEV1 (% predicted) | 71.1 (3.1) | 68.5 (4.6) | 0.69 |
| Patients with normal lung function | |||
| FEV1 (% predicted) | 91.7 (3.3) | 95.2 (3.9) | 0.27 |
| Localisation | 0.16 | ||
| Main bronchus (%) | 3 (3.4%) | 1 (1.8%) | |
| Lobar bronchus (%) | 17 (19.7%) | 9 (16.6%) | |
| Segmental bronchus (%) | 53 (61.6%) | 26 (48.1%) | |
| Subsegmental bronchus (%) | 4 (4.6%) | 6 (11.1%) | |
| More peripheral (%) | 9 (10.4%) | 12 (22.2%) | |