Table 1 Summary of baseline clinical pathological parameters of patients with bladder cancer in the three datasets
| Characteristic | TCGA | GSE31684 | GSE32548 |
|---|---|---|---|
| Age (years) | |||
| ≤ 65 | 160 | 29 | 44 |
| > 65 | 245 | 64 | 87 |
| Gender | |||
| Male | 299 | 68 | 100 |
| Female | 106 | 25 | 31 |
| Grade | |||
| Low | 22 | 6 | 55 |
| High | 382 | 87 | 75 |
| T stage | |||
| Ta | 1 | 5 | 40 |
| T1 | 3 | 10 | 51 |
| T2 | 117 | 17 | 38 |
| T3 | 193 | 42 | 0 |
| T4 | 58 | 19 | 0 |
| N stage | |||
| N0 | 235 | 49 | N/A |
| N1–3 | 128 | 28 | N/A |
| AJCC stage | |||
| I–II | 130 | 29 | N/A |
| III–IV | 273 | 64 | N/A |
| LVI | |||
| Negative | 128 | N/A | N/A |
| Positive | 149 | N/A | N/A |
| Survival status | |||
| Alive | 227 | 28 | 105 |
| Deceased | 178 | 65 | 25 |
| Mean follow-up time (month) | 26.6 | 47.5 | 50.4 |
