Table 1.
The clinical characteristics of the patients
| Clinical characteristics | n (%) |
|---|---|
| Sex | |
| Male | 59 (72.0) |
| Female | 23 (28.0) |
| Age (range) | 60 (20–79) |
| ≤60 years | 47 (57.3) |
| >60 years | 35 (42.7) |
| Smoking status | |
| Never | 17 (20.7) |
| Smoker | 65 (79.3) |
| Baseline ECOG performance status | |
| 0–1 | 72 (87.8) |
| 2 | 10 (12.2) |
| Histological subtype | |
| Adenocarcinomas | 35 (42.7) |
| Squamous cell carcinomas | 18 (21.9) |
| SCLC | 29 (35.4) |
| T status | |
| T1 | 3 (3.7) |
| T2 | 28 (34.1) |
| T3 | 13 (15.9) |
| T4 | 38 (46.3) |
| N status | |
| N0 | 8 (9.8) |
| N1 | 3 (3.7) |
| N2 | 23 (28) |
| N3 | 48 (58.5) |
| M status | |
| M0 | 25 (30.5) |
| M1 | 57 (69.5) |
| TNM stage | |
| IIIa | 8 (9.8) |
| IIIb | 17 (20.7) |
| IV | 57 (69.5) |
Abbreviations: ECOG, Eastern Cooperative Oncology Group; SCLC, small-cell lung cancer.