Table 1.
Summary of basic clinical feature.
| Covariates | Group | Total numbers (%) | Train numbers (%) | Test | p value |
|---|---|---|---|---|---|
| Age | ≤65 | 324 (64.67%) | 191 (63.46%) | 133 (66.5%) | 0.5466 |
| >65 | 177 (35.33%) | 110 (36.54%) | 67 (33.5%) | ||
| Gender | Female | 137 (27.35%) | 81 (26.91%) | 56 (28%) | 0.8684 |
| Male | 364 (72.65%) | 220 (73.09%) | 144 (72%) | ||
| Grade | G1-2 | 360 (71.86%) | 216 (71.76%) | 144 (72%) | 0.8565 |
| G3-4 | 122 (24.35%) | 75 (24.92%) | 47 (23.5%) | ||
| Unknown | 19 (3.79%) | 10 (3.32%) | 9 (4.5%) | ||
| Stage | Stage I-II | 95 (18.96%) | 60 (19.93%) | 35 (17.5%) | 0.5956 |
| Stage III-IV | 338 (67.47%) | 201 (66.78%) | 137 (68.5%) | ||
| Unknown | 68 (13.57%) | 40 (13.29%) | 28 (14%) | ||
| T | T0-2 | 179 (35.73%) | 108 (35.88%) | 71 (35.5%) | 1 |
| T3-4 | 266 (53.09%) | 161 (53.49%) | 105 (52.5%) | ||
| Unknown | 56 (11.18%) | 32 (10.63%) | 24 (12%) | ||
| M | M0 | 186 (37.13%) | 114 (37.87%) | 72 (36%) | 1 |
| M1 | 1 (0.2%) | 1 (0.33%) | 0 (0%) | ||
| Unknown | 314 (62.67%) | 186 (61.79%) | 128 (64%) | ||
| N | N0 | 170 (33.93%) | 114 (37.87%) | 56 (28%) | 0.0175 |
| N1-3 | 237 (47.31%) | 130 (43.19%) | 107 (53.5%) | ||
| Unknown | 94 (18.76%) | 57 (18.94%) | 37 (18.5%) |