| All | Patients with tumor sample | Patients with normal lung sample |
---|---|---|---|
N | 46 | 39 | 41 |
Age, years, mean ± SD | 70 ± 9 | 70.8 ± 8.7 | 70 ± 9.1 |
Male, n (%) | 23 (50.0) | 20 (51.3) | 21 (51.2) |
Race, n (%) | |||
 White | 40 (87) | 35 (89.7) | 37 (90.2) |
 Hispanic | 4 (8.7) | 2 (5.1) | 4 (9.8) |
 Other | 2 (4.3) | 2 (5.1) | 0 (0) |
Smoking history, n (%) | |||
 Never | 7 (15.2) | 6 (15.4) | 4 (9.8) |
 Former | 29 (63.0) | 25 (64.1) | 28 (68.3) |
 Current | 10 (21.7) | 8 (20.5) | 9 (22.0) |
Histology, n (%) | |||
 Adenocarcinoma | 23 (50.0) | 20 (51.3) | 18 (43.9) |
 Squamous cell carcinoma | 23 (50.0) | 19 (48.7) | 23 (56.1) |
Stage, n (%) | |||
 IIA | 30 (65.2) | 26 (66.7) | 26 (63.4) |
 IIB | 16 (34.8) | 13 (33.3) | 15 (36.6) |
Lymphovascular invasion, n (%) | 24 (52.2) | 21 (53.8) | 21 (51.2) |
Pleural invasion, n (%) | 36 (78.3) | 30 (76.9) | 32 (78) |
Tumor size, cm, mean ± SD | 4.3 ± 2.1 | 4.3 ± 2.2 | 4.4 ± 2.1 |
Percent positive nodes, %, mean ± SD | 13.0 ± 16.0 | 13.1 ± 17.0 | 13.4 ± 16.3 |
Chemotherapy, n (%) | 15 (32.6) | 13 (33.3) | 12 (29.3) |
Recurrence type, n (%) | |||
 None | 22 (47.8) | 20 (51.3) | 20 (48.8) |
 Nodal | 6 (13.0) | 5 (12.8) | 6 (14.6) |
 Systemic | 12 (26.1) | 9 (23.1) | 10 (24.4) |
 New primary | 4 (8.7) | 3 (7.7) | 4 (9.8) |
 Multiple types | 2 (4.3) | 2 (5.1) | 1 (2.4) |
Alive at last follow-up, n (%) | 23 (50.0) | 19 (48.7) | 21 (51.2) |