Table 1.
Comparison of clinical characteristics of KIRC* patients in training set and testing set.
| Covariates | Type | Overall set | Training set | Testing set | P-value |
|---|---|---|---|---|---|
| age | <=60 | 258 (51.09%) | 122 (48.22%) | 136 (53.97%) | 0.2291 |
| >60 | 247 (48.91%) | 131 (51.78%) | 116 (46.03%) | ||
| gender | FEMALE | 173 (34.26%) | 90 (35.57%) | 83 (32.94%) | 0.5958 |
| MALE | 332 (65.74%) | 163 (64.43%) | 169 (67.06%) | ||
| grade | G1–2 | 228 (45.15%) | 119 (47.04%) | 109 (43.25%) | 0.6466 |
| G3–4 | 272 (53.86%) | 132 (52.17%) | 140 (55.56%) | ||
| GX | 5 (0.99%) | 2 (0.79%) | 3 (1.19%) | ||
| stage | Stage I– II | 306 (60.59%) | 157 (62.06%) | 149 (59.13%) | 0.5604 |
| Stage III–IV | 199 (39.41%) | 96 (37.94%) | 103 (40.87%) | ||
| T | T1–2 | 324 (64.16%) | 165 (65.22%) | 159 (63.1%) | 0.6859 |
| T3–4 | 181 (35.84%) | 88 (34.78%) | 93 (36.9%) | ||
| M | M0 | 404 (80%) | 203 (80.24%) | 201 (79.76%) | 0.9896 |
| M1 | 77 (15.25%) | 38 (15.02%) | 39 (15.48%) | ||
| MX | 24 (4.75%) | 12 (4.74%) | 12 (4.76%) | ||
| N | N0 | 228 (45.15%) | 120 (47.43%) | 108 (42.86%) | 0.0768 |
| N1 | 15 (2.97%) | 11 (4.35%) | 4 (1.59%) | ||
| NX | 262 (51.88%) | 122 (48.22%) | 140 (55.56%) |
*KIRC, kidney renal clear cell carcinoma.