Table I.
Patient characteristics.
| Characteristic | n | % |
|---|---|---|
| Gender | ||
| Male | 46 | 75.4 |
| Female | 15 | 24.6 |
| Age at diagnosis, years | ||
| Median (range) | 61.6 (39.8–78.1) | |
| Mean | 62.5 | |
| Smoking history | ||
| Smoker | 54 | 88.5 |
| Non-smoker | 7 | 11.5 |
| Histology | ||
| Squamous cell carcinoma | 25 | 41.0 |
| Adenocarcinoma | 28 | 45.9 |
| Large cell carcinoma | 8 | 13.1 |
| Tumor size, T | ||
| T1a | 6 | 9.8 |
| T1b | 7 | 11.5 |
| T2a | 26 | 42.6 |
| T2b | 10 | 16.4 |
| T3 | 12 | 19.7 |
| Lymph node status, N | ||
| N0 | 45 | 73.8 |
| N1 | 16 | 26.2 |
| Tumor stage | ||
| IA (I) | 11 | 18.0 |
| IB (II) | 19 | 31.2 |
| IIA (III) | 11 | 18.0 |
| IIB (IV) | 20 | 32.8 |
| Follow-up period, months | ||
| Median | 49 | |
| Range | 5–86 | |
| Status | ||
| Alive/censored | 33 | 54.1 |
| Succumbed to lung cancer | 27 | 44.3 |
| Other cause of mortality | 1 | 1.6 |
| Relapse-free survival time, months | ||
| Median | 47 | |
| Range | 3–86 |