Table 1. Patient characteristics for prognostic analyses.
|
Age | |
| Median (range) | 68 (34–85) |
|
Sex | |
| Male | 89 |
| Female | 67 |
|
Smoking history | |
| Never | 64 |
| Ever/current | 92 |
|
Serum CEA level | |
| <5.0 ng dl−1 | 124 |
| ⩾5.0 ng dl−1 | 32 |
|
Histological type | |
| Adenocarcinoma | 110 |
| Squamous cell carcinoma | 36 |
| Large-cell carcinoma | 7 |
| Carcinoid | 2 |
| NSCLC, NOS | 1 |
|
Lymphatic invasion | |
| Negative | 122 |
| Positive | 34 |
|
Vascular invasion | |
| Negative | 98 |
| Positive | 58 |
|
Pleural invasion | |
| Negative | 113 |
| Positive | 43 |
|
Pathological stage | |
| IA | 79 |
| IB | 40 |
| IIA | 18 |
| IIB | 4 |
| IIIA | 15 |
Abbreviations: CEA=carcinoembryonic antigen; NOS=not otherwise specified; NSCLC=non-small-cell lung cancer.