Selected baseline characteristics of the cohort, stratified by survival
| Characteristics | Survival; no. (and %)* | p (logrank) | |
|---|---|---|---|
| Alive (n = 30) | Dead (n = 100) | ||
| Age, y | |||
| Mean (SD) | 66.9 (6.7) | 70.0 (8.6) | 0.01 |
| ≥70 | 10 (33.3) | 48 (48.0) | |
| Sex | 0.16 | ||
| Male | 20 (66.7) | 71 (71.0) | |
| Female | 10 (33.3) | 29 (29.0) | |
| Histology | 0.01 | ||
| Adenocarcinoma | 9 (30.0) | 46 (46.0) | |
| Large cell carcinoma | 1 (3.3) | 16 (16.0) | |
| Small cell carcinoma | 1 (3.3) | 3 (3.0) | |
| Squamous cell carcinoma | 15 (50.0) | 28 (28.0) | |
| Other | 4 (13.3) | 7 (7.0) | |
| Adenosquamous | 0 | 3 | |
| Carcinoma | 3 (10.0) | 2 (2.0) | |
| Not specified | 1 (3.3) | 2 (2.0) | |
| Stage | 0.05 | ||
| 1 | 21 (70.0) | 66 (66.0) | |
| 1A | 6 (20.0) | 26 (26.0) | |
| 1B | 15 (50.0) | 40 (40.0) | |
| 2 | 7 (23.3) | 19 (19.0) | |
| 2A | 1 (3.3) | 1 (1.0) | |
| 2B | 6 (20.0) | 18 (18.0) | |
| 3 (3A) | 2 (6.7) | 15 (15.0) | |
| Procedure | |||
| Pneumonectomy | 9 (30.0) | 27 (27.0) | 0.66 |
| Lobectomy | 18 (60.0) | 49 (49.0) | 0.38 |
| Bilobectomy | 1 (3.3) | 9 (9.0) | |
| Other | 2 (6.7) | 15 (15.0) | 0.02 |
| Segmentectomy | 1 (3.3) | 3 (3.0) | |
| Wedge | 1 (3.3) | 12 (12.0) | |
↵* Unless otherwise indicated.