Table 1. Surgical-pathological factors based on PAN metastasis (n=5,620).
| Characteristics | PAN metastasis (+) | PAN metastasis (−) | p-value | |
|---|---|---|---|---|
| Total | 120 (2.1) | 5,500 (97.9) | - | |
| Age (yr) | 48.7 (±11.9) | 47.9 (±12.0) | 0.460 | |
| <50 | 61 (1.9) | 3,118 (98.1) | ||
| ≥50 | 59 (2.4) | 2,380 (97.6) | ||
| Histology | 0.600 | |||
| SCC | 76 (2.1) | 3,583 (97.9) | ||
| Adeno | 28 (2.0) | 1,385 (98.0) | ||
| AS | 14 (3.0) | 458 (97.0) | ||
| Others | 2 (2.6) | 74 (97.4) | ||
| Clinical stage | <0.001 | |||
| IB1 | 27 (0.9) | 2,951 (99.1) | ||
| IB2 | 16 (1.9) | 846 (98.1) | ||
| IIA | 11 (1.9) | 562 (98.1) | ||
| IIB | 66 (5.5) | 1,141 (94.5) | ||
| Tumor size (cm) | <0.001 | |||
| ≤2.0 | 10 (0.7) | 1,486 (99.3) | ||
| 2.1–4.0 | 39 (1.8) | 2,150 (98.2) | ||
| 4.1–6.0 | 49 (3.7) | 1,280 (96.3) | ||
| >6.0 | 15 (5.2) | 275 (94.8) | ||
| Parametrial involvement | <0.001 | |||
| No | 45 (1.0) | 4,500 (99.0) | ||
| Yes | 75 (7.0) | 999 (93.0) | ||
| Unknown | 0 | 1 (100.0) | ||
| Deep stromal invasion | <0.001 | |||
| No | 7 (0.3) | 2,517 (99.7) | ||
| Yes | 92 (3.2) | 2,742 (96.8) | ||
| Unknown | 21 (8.0) | 241 (92.0) | ||
| LVSI | <0.001 | |||
| Absence | 13 (0.5) | 2,491 (99.5) | ||
| Presence | 98 (3.2) | 2,919 (96.8) | ||
| Unknown | 9 (9.1) | 90 (90.9) | ||
| Corpus invasion | <0.001 | |||
| No | 73 (1.5) | 4,654 (98.5) | ||
| Yes | 42 (5.6) | 710 (94.4) | ||
| Unknown | 5 (3.5) | 136 (96.5) | ||
| Peritoneal cytology | <0.001 | |||
| Not performed | 56 (1.3) | 4,181 (98.7) | ||
| No malignancy | 48 (3.7) | 1,236 (96.3) | ||
| Malignancy | 16 (19.0) | 68 (81.0) | ||
| Unknown | 0 | 15 (100.0) | ||
| Ovarian metastasis | <0.001 | |||
| No | 100 (1.9) | 5,199 (98.1) | ||
| Yes | 16 (24.2) | 50 (75.8) | ||
| Unknown | 4 (1.6) | 251 (98.4) | ||
| PLN | <0.001 | |||
| No metastasis | 9 (0.2) | 4,139 (99.8) | ||
| Single metastasis | 9 (1.6) | 538 (98.4) | ||
| Multiple metastasis | 100 (11.3) | 785 (88.7) | ||
| Sampled nodes | ||||
| Pelvic | 33 (21) | 39 (22) | 0.002 | |
| Para-aortic | 13 (17) | 8 (10) | <0.001 | |
| Crude nodal metastasis | ||||
| Pelvic | 6 (10) | 0 (1) | <0.001 | |
| Para-aortic | 2 (6) | 0 | <0.001 | |
| Lymph node ratio (%) | ||||
| Pelvic | 22.6 (32.6) | 0 (2.9) | <0.001 | |
| Para-aortic | 34.0 (56.7) | 0 | <0.001 | |
Data shown are number (%) per row, mean (±standard deviation), or median (interquartile range). Student's t-test, Mann-Whitney U test, or χ2 test for p-values. Significant p-values were emboldened.
Adeno, adenocarcinoma; AS, adenosquamous; LVSI, lympho-vascular space invasion; PAN, para-aortic lymph node; PLN, pelvic lymph node; SCC, squamous cell carcinoma.