Table 1. The clinical information of TCGA and CGGA.
| Data | TCGA (training set; N=669) | CGGA (test set; N=1,018) |
|---|---|---|
| Age, years | ||
| ≥60 | 146 (21.8) | 116 (11.4) |
| <60 | 463 (69.2) | 902 (88.6) |
| Unknown | 60 (9.0) | – |
| Gender | ||
| Male | 355 (53.1) | 417 (41.0) |
| Female | 254 (38.0) | 601 (59.0) |
| Unknown | 60 (9.0) | |
| OS (days) | 537 (264.0–1,011.0) | 836.5 (329.8–2,032.3) |
| State | ||
| Alive | 430 (64.3) | 362 (35.6) |
| Dead | 239 (25.7) | 617 (60.6) |
| Unknown | – | 39 (3.8) |
| IDH mutation status | ||
| Wild type | 233 (34.8) | 435 (42.7) |
| Mutant | 429 (64.1) | 531 (52.2) |
| Unknown | 7 (1.0) | 52 (5.1) |
| 1p19q codeletion status | ||
| Codel | 169 (25.3) | 212 (20.8) |
| Non-codel | 494 (73.8) | 728 (71.5) |
| Unknown | 6 (0.9) | 78 (7.7) |
| MGMTp methylation status | ||
| Methylated | 477 (71.3) | 472 (46.4) |
| Un-methylated | 161 (24.1) | 376 (36.9) |
| Unknown | 31 (4.6) | 170 (16.7) |
Data are presented as n (%) or median (interquartile range). TCGA, The Cancer Genome Atlas; CGGA, Chinese Glioma Genome Atlas; OS, overall survival; IDH, isocitrate dehydrogenase; MGMT, O6-methylguanine DNA methyltransferase.