Table I.
Characteristics of patients used in this study.
| Item | TCGA cohort (n=400) | GEO cohort (n=165) |
|---|---|---|
| Age, years | 68 (34–89) | 65 (24–88) |
| Sex | ||
| Female | 103 (25.8) | 30 (18.2) |
| Male | 297 (74.2) | 135 (81.8) |
| Grade | ||
| Low | 20 (5.0) | 105 (63.6) |
| High | 377 (94.3) | 60 (36.4) |
| Unknown | 3 (0.7) | 0 |
| Vascular invasion | ||
| Yes | - | 62 (37.6) |
| No | - | 103 (62.4) |
| Stage | ||
| I | 2 (0.5) | - |
| II | 127 (31.8) | - |
| III | 138 (34.5) | - |
| IV | 131 (32.7) | - |
| Unknown | 2 (0.5) | - |
| Overall survival, months | 48.4 (1.03-136.97) | - |
| Risk, based on the 6-gene signature | ||
| Low | 200 (50.0) | 83 (50.3) |
| High | 200 (50.0) | 82 (49.7) |
Values are expressed as n (%) or the median (range). GEO, Gene Expression Omnibus; TCGA, The Cancer Genome Atlas; OS, overall survival.