Table 1.
Demographics and clinical characteristics of patients
| Characteristics | All patients (n = 928) n (%) |
|---|---|
| Age (years) | |
| Mean (min., max.) | 64.05 ± 10.29 (21, 96) |
| <58 | 213 (23.0) |
| ≥58, <71 | 466 (50.2) |
| ≥71 | 249 (26.8) |
| Gender | |
| Male | 667 (71.9) |
| Female | 261 (28.1) |
| Smoking status | |
| Current Smoker | 157 (16.9) |
| Former Smoker | 194 (20.9) |
| Never Smoker | 383 (41.3) |
| Unknown | 194 (20.9) |
| Family history of lung cancer | |
| Yes | 14 (1.5) |
| No | 824 (88.8) |
| Unknown | 90 (9.7) |
| Histological subtypes | |
| Adenocarcinoma | 450 (48.5) |
| Squamous carcinoma | 204 (22.0) |
| Small cell lung cancer | 129 (13.9) |
| Unknown | 114 (12.3) |
| Other | 31 (3.3) |
| Stage | |
| Stage I | 67 (7.2) |
| Stage II | 54 (5.8) |
| Stage IIIA | 103 (11.1) |
| Stage IIIB/IV | 587 (63.3) |
| Unknown | 117 (12.6) |
| ECOG PS | |
| 0 | 401 (43.2) |
| 1 | 218 (23.5) |
| 2 | 93 (10.0) |
| 3 | 18 (1.9) |
| Unknown | 198 (21.3) |
| Symptoms | |
| Irritable dry cough | 527 (56.8) |
| Blood in sputum | 277 (29.8) |
| Chest pain | 235 (25.3) |
| Fever | 110 (11.9) |
| Shortness of breath | 260 (28.0) |
ECOG, Eastern Cooperative Oncology Group; max., maximum; min., minimum; PS, performance status.