| Variable | Training set (n = 4172) | Validation set (n = 1768) | P | Variable | Training set (n = 4172) | Validation set (n = 1768) | P |
| Lymph node status |
|
|
| Tumor tissue differentiation |
|
|
|
| Negative | 3147 | 1339 | 0.80 | Level 1 | 610 | 232 | 0.18 |
| Positive | 1025 | 429 |
| Level 2 | 1890 | 806 |
|
| Age |
|
|
| Level 3 | 1564 | 670 |
|
| <40 | 1161 | 498 | 0.94 | Level 4 | 108 | 60 | 0.98 |
| 40 - 60 | 2069 | 877 |
| Distant metastasis of tumor |
|
|
|
| ≥60 | 942 | 393 |
| No distant metastasis | 3801 | 1605 | 0.68 |
| Race |
|
|
| Distant metastasis | 371 | 163 |
|
| Whites | 3091 | 1301 | 0.62 | Tumor diameter |
|
|
|
| Blacks | 510 | 232 |
| ≤6 | 3420 | 1456 | 0.73 |
| Native American | 63 | 27 |
| >6 | 752 | 312 |
|
| Asian | 491 | 195 |
| SEER stage |
|
|
|
| Unidentified race | 17 | 11 |
| Regional | 1632 | 705 | 0.94 |
| Marital status |
|
|
| Localized | 2129 | 889 |
|
| Married | 1938 | 828 | 0.89 | Distant | 405 | 171 |
|
| Unmarried and live apart | 1118 | 466 |
|
|
|
|
|
| Unmarried | 613 | 268 |
| AJCC Stage |
|
|
|
| Widowed | 323 | 138 |
| I | 2218 | 928 | 0.98 |
| Unknown | 182 | 68 |
| II | 568 | 251 |
|
| Tumor histological type |
|
|
| III | 943 | 402 |
|
| Cervical squamous cell carcinoma | 2692 | 1138 | 0.88 | IV | 437 | 184 |
|
| Squamous adenocarcinoma | 161 | 71 |
| unstage | 6 | 3 |
|
| Adenocarcinoma | 1206 | 517 |
|
|
|
|
|
| Others | 113 | 42 |
|
|
|
|
|
| Primary site |
|
|
|
|
|
|
|
| Endocervix | 901 | 405 | 0.52 |
|
|
|
|
| Cervix uteri | 3111 | 1302 |
|
|
|
|
|
| Exocervix | 82 | 35 |
|
|
|
|
|
| Overlapping lesion of cervix uteri | 78 | 25 |
|
|
|
|
|