Table 1. Baseline patients characteristics (N = 276).
| Variables | No, (%) |
| Age, yr, mean±SD | 67.0±9.2 |
| Male sex | 192 (69.6) |
| Performance status | |
| ECOG ≤ 1 | 148 (53.6) |
| ECOG ≥ 2 | 128 (46.4) |
| Stage | |
| Stage IIIA | 11 (4.0) |
| Stage IIIB | 98 (35.5) |
| Stage IV | 167 (60.5) |
| Pathological subtype | |
| Adenocarcinoma | 129 (46.7) |
| Squamous cell carcinoma | 100 (36.2) |
| NSCLC, undetermined | 47 (17.1) |
| Smoking status | |
| Smoker or ex-smoker | 172 (62.3) |
| Non- smoker | 104 (37.7) |
| Treatment | |
| Chemotherapy | 171 (62.0) |
| Radiotherapy | 36 (13.0) |
| Target therapy | 216 (78.3) |
| BSC alone | 72 (26.1) |
| Tuberculosis | |
| With TB | 52 (18.8) |
| Without TB | 224 (81.2) |
NSCLC: non-small cell lung cancer.
BSC: best supportive care, TB: tuberculosis.