Table 1.
Patient characteristics for the training and validation cohorts.
| Variables | Training cohort | Validation cohort | P-value |
|---|---|---|---|
| N % | N % | ||
| 700 49.1 | 727 50.9 | ||
| Age (year) | 0.056 | ||
| <60 | 462 (66.0) | 514 (70.7) | |
| ≥60 | 238 (34.0) | 213 (29.3) | |
| Menopausal status | 0.439 | ||
| Premenopause | 231 (33.0) | 226 (31.1) | |
| Postmenopause | 469 (67.0) | 501 (68.9) | |
| Depth of myometrial invasion | <0.001 | ||
| <50% | 544 (77.7) | 494 (68.0) | |
| ≥50% | 156 (22.3) | 233 (32.0) | |
| Cervical stromal invasion | <0.001 | ||
| No | 631(90.1) | 574 (79.0) | |
| Yes | 69 (9.9) | 153 (21.0) | |
| Histological grade | <0.001 | ||
| G1 | 250(35.7) | 178 (24.5) | |
| G2 | 304(43.4) | 371 (51.0) | |
| G3 | 146(20.9) | 178 (24.5) | |
| Histological type | 0.068 | ||
| Endometrioid | 637 (91.0) | 640 (88.0) | |
| Non-endometrioid | 63 (9.0) | 87 (12.0) | |
| Tumor diameter | <0.001 | ||
| <2 | 266(38.0) | 177 (24.3) | |
| ≥2 | 434(62.0) | 550 (75.7) | |
| Lymphovascular space invasion | 0.807 | ||
| No | 584 (83.4) | 610 (83.9) | |
| Yes | 116 (16.6) | 117 (16.1) | |
| Lymph node metastasis | 0.016 | ||
| No | 644 (92.0) | 641 (88.2) | |
| Yes | 56 (8.0) | 86 (11.8) |
Data are n (%) or mean± SD. Bold represents P-value of the variable is less than 0.05.