Table 1.
Clinical features of all 603 NSCLC patients included in this study
| Features | GSE37745 (n = 196) | GSE31210 (n = 226) | GSE50081 (n = 181) | |
|---|---|---|---|---|
| Age (years), no (%) | ||||
| ≤65 | 94 (48.0) | 176 (77.9) | 59 (32.6) | |
| >65 | 102 (52.0) | 50 (22.1) | 122 (67.4) | |
| Gender, no (%) | ||||
| Male | 107 (55.0) | 105 (46.5) | 98 (54.1) | |
| Female | 89 (45.0) | 121 (53.5) | 83 (45.9) | |
| Vital status (%) | ||||
| Alive | 52 (26.5) | 191 (84.5) | 106 (58.6) | |
| Dead | 144 (73.5) | 35 (15.5) | 75 (41.4) | |
| Disease stage, no (%) | ||||
| I | 130 (66.0) | 168 (74.3) | 127 (70.2) | |
| II | 35 (18.0) | 58 (25.7) | 54 (29.8) | |
| III | 27 (14.0) | |||
| IV | 4 (2.0) | |||
| Smoking status | ||||
| Never-smoker | 115 (50.9) | 24 (13.3) | ||
| Ever-smoker | 111 (49.1) | 79 (43.6) | ||
| Current | 54 (29.8) | |||
| Undetermined | 21 (11.6) | |||
| Histology | ||||
| Adenocarcinoma | 106 (54.0) | 226 | 128 (70.7) | |
| Large cell carcinoma | 24 (12.0) | 7 (3.9) | ||
| Squamous cell carcinoma | 66 (34.0) | 43 (23.9) | ||