Table 1.
Patients' characteristics and clinicopathological parameters of the study group (N = 129).
| Characteristic | Group | N (%) |
|---|---|---|
| Age (years), median (range) | 67 (39-84) | |
| Sex | Male | 80 (62.0) |
| Female | 49 (38.0) | |
| Smoking status | Never | 15 (11.6) |
| Former | 70 (54.3) | |
| Current | 44 (34.1) | |
| Histological subtypes | Adenocarcinoma | 67 (51.9) |
| Squamous cell carcinoma | 30 (23.3) | |
| Carcinoid | 14 (10.9) | |
| LCNEC∗ | 8 (6.2) | |
| Other# | 10 (7.8) | |
| Grade§ | G1 | 11 (8.5) |
| G2 | 50 (38.8) | |
| G3 | 47 (36.4) | |
| G4 | 8 (6.2) | |
| Unknown | 13 (10.1) | |
| T stage | T1 | 62 (48.1) |
| T2 | 45 (34.9) | |
| T3 | 16 (12.4) | |
| T4 | 3 (2.3) | |
| Unknown | 3 (2.3) |
∗LCNEC: large-cell neuroendocrine carcinoma. #Four adenosquamous carcinomas, two non-small-cell lung cancers, one non-small-cell lung cancer (not otherwise specified), two small-cell carcinomas, and one synovial sarcoma. §Grade 1: well differentiated, low grade; grade 2: moderately differentiated, intermediate grade; grade 3: poorly differentiated, high grade; and grade 4: undifferentiated, high grade.