Table 1. Baseline demographic and clinical characteristics of all patients.
| Feature | PALN negative (%) | PALN positive (%) | p value | |
|---|---|---|---|---|
| Total | 622(100.0) | 101(100.0) | ||
| Age | <=46y | 364(58.5) | 44(43.6) | 0.007 |
| >46y | 258(41.5) | 57(56.4) | ||
| BMI | <18.5 | 50(8.1) | 7(6.9) | 0.841 |
| 18.5~24.9 | 448(72.3) | 72(71.3) | ||
| >=25.0 | 122(19.7) | 22(21.8) | ||
| ECOG | 0 or 1 | 571(91.8) | 90(89.1) | 0.343 |
| 2 or 3 | 51(8.2) | 11(10.9) | ||
| Menopause | No | 477(76.7) | 69(68.3) | 0.080 |
| Yes | 145(23.3) | 32(31.7) | ||
| Childbirth | No | 33(5.3) | 3(3.0) | 0.459 |
| Yes | 589(94.7) | 98(97.0) | ||
| FIGO stage* | IB1 | 252(40.5) | 23(22.8) | 0.001 |
| IB2 | 80(12.9) | 10(9.9) | ||
| IIA1 | 178(28.6) | 37(36.6) | ||
| IIA2 | 112(18.0) | 31(30.7) | ||
| Histological type | SCC | 547(87.9) | 92(91.1) | 0.576 |
| AC | 49(7.9) | 5(5.0) | ||
| ASC | 26(4.2) | 4(4.0) | ||
| Tumor size | <=3.5cm | 271(44.3) | 29(29.0) | 0.004 |
| >3.5cm | 341(55.7) | 71(71.0) | ||
| Ovarian preservation | No | 426(68.5) | 87(86.1) | <0.001 |
| Yes | 196(31.5) | 14(13.9) | ||
| Ovarian metastasis | No | 421(98.8) | 80(92.0) | 0.001 |
| Yes | 5(1.2) | 7(8.0) | ||
Abbreviations: PALN: para-aortic lymph node, BMI: body mass index, ECOG: eastern cooperative oncology group, SCC: squamous carcinoma, AC: adenocarcinoma, ASC: adenosquamous carcinoma
*FIGO stages are defined by the 2009 FIGO (International Federation of Gynaecology and Obstetrics) staging system.