Table 3.
Demographics and pathological characteristics of the patients in the training cohort and the validation cohort.
| Train data | Test data | |||||
|---|---|---|---|---|---|---|
| PI (+) | PI (–) | P | PI (+) | PI (–) | P | |
| n = 316 | n = 2,864 | n = 125 | n = 1,228 | |||
| Age (year) | 0.178 | 0.386 | ||||
| <40 | 54 | 536 | 18 | 226 | ||
| 40–60 | 208 | 1,945 | 86 | 836 | ||
| ≥ 60 | 54 | 383 | 21 | 166 | ||
| Menopausal state | 0.957 | 0.052 | ||||
| Yes | 131 | 1,191 | 61 | 489 | ||
| No | 185 | 1,671 | 64 | 739 | ||
| BMI (kg/m2) | 22.5 ± 3.5 | 22.4 ± 3.8 | 0.825 | 21.9 ± 3.4 | 22.1 ± 3.3 | 0.623 |
| FIGO | 0.000 | 0.000 | ||||
| ≤ IB1 | 6 | 928 | 3 | 429 | ||
| IB2 | 37 | 870 | 14 | 366 | ||
| IB3 | 94 | 582 | 50 | 232 | ||
| IIA1 | 44 | 262 | 15 | 121 | ||
| IIA2 | 135 | 222 | 43 | 80 | ||
| Tumor size | 0.000 | 0.000 | ||||
| ≤ 2cm | 13 | 991 | 5 | 464 | ||
| >2 and ≤ 4 cm | 74 | 1,069 | 27 | 454 | ||
| >4cm | 229 | 804 | 93 | 312 | ||
| Depth of stromal invasive | 0.000 | 0.000 | ||||
| ≥ 1/2 | 302 | 1,503 | 121 | 621 | ||
| <1/2 | 14 | 1,361 | 4 | 607 | ||
| Infiltration into vagina | 0.000 | 0.000 | ||||
| Positive | 179 | 484 | 58 | 201 | ||
| Negative | 137 | 2380 | 47 | 1,027 | ||
| Surgical vaginal margin | 0.000 | 0.000 | ||||
| Positive | 80 | 192 | 23 | 62 | ||
| Negative | 236 | 2,672 | 102 | 1,166 | ||
| Status of pelvic lymph nodes | 0.000 | 0.000 | ||||
| Positive | 229 | 438 | 92 | 200 | ||
| Negative | 87 | 2,426 | 33 | 1,028 | ||
| Histological subtype | 0.140 | 0.205 | ||||
| Squamous cell cancer | 270 | 2,303 | 108 | 996 | ||
| Adenocarcinoma | 30 | 391 | 11 | 155 | ||
| Adenosequamous cancer | 11 | 131 | 3 | 62 | ||
| Other subtypes | 5 | 39 | 3 | 15 | ||
| Infiltration into uterine body | 0.000 | 0.000 | ||||
| Positive | 135 | 383 | 57 | 157 | ||
| Negative | 181 | 2,481 | 68 | 1,071 | ||
| Lymph vascular space invasion | 0.000 | 0.000 | ||||
| Positive | 260 | 1,237 | 105 | 501 | ||
| Negative | 56 | 1,627 | 20 | 727 | ||