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Clinical characteristics of the TCGA and GEO cohorts
| Characteristic | TCGA cohort | GEO cohort | |
|---|---|---|---|
| Age | <60 | 151 (28%) | 108 (48%) |
| ≥60 | 330 (62%) | 118 (52%) | |
| Gender | Man | 230 (43%) | 105 (46%) |
| Woman | 270 (50%) | 121 (54%) | |
| Smoking status | Ever | 414 (77%) | 111 (49%) |
| Never | 72 (13%) | 115 (51%) | |
| Stage | I–II | 390 (73%) | 226 (100%) |
| III–IV | 108 (20%) | 0 | |
