Table 1. Basic characteristics of the datasets.
| Characteristics | Training dataset(n = 300) | Validation dataset(n = 248) | TCGA dataset(n = 374) |
|---|---|---|---|
| Gender (%) | |||
| Male | 199 (66.33) | 161 (64.92) | 242 (64.71) |
| Female | 101 (33.67) | 87 (35.08) | 132 (35.29) |
| Age: mean (sd) | 61.94 (11.36) | 65.40 (12.50) | 65.11 (10.62) |
| Lauren type (%) | |||
| Intestinal | 146 (48.67) | 138 (55.65) | – |
| Diffuse | 135 (45) | 86 (34.68) | – |
| Mixed | 17 (5.67) | 22 (8.87) | – |
| Unknown | 2 (0.67) | 2 (0.81) | – |
| pStage (%) | |||
| I | 30 (10) | 42 (16.94) | 52 (13.90) |
| II | 97 (32.33) | 40 (16.13) | 121 (32.35) |
| III | 96 (32) | 91 (36.69) | 164 (43.85) |
| IV | 77 (25.67) | 73 (29.44) | 37 (9.89) |
| Unknown | 0 (0.00) | 2 (0.81) | 0 |
| Mol. Subtype (%) | |||
| MSS/TP53− | 107 (35.67) | – | – |
| MSS/TP53+ | 79 (26.33) | – | – |
| MSI | 68 (22.67) | – | – |
| MSS/EMT | 46 (15.33) | – | – |
| OS | |||
| Time mean (sd) | 50.60 (31.42) | 38.81 (42.69) | 20.40 (17.93) |
| Event (%) | 152 | 122 | 146 |
| DFS | |||
| Time mean (sd) | 33.72 (29.82) | – | – |
| Event (%) | 152 | – | – |
Notes.
Overall survival (OS), Disease-free survival (DFS).