Clinical and pathologic characteristics of study population
| Characteristics | Overall (n=114) | Adjuvant treatment (−) (n=59) | Adjuvant treatment (+) (n=55) | P value |
| Age, years | 46.8±10.5 | 45.8±11.0 | 47.9±10.0 | 0.283* |
| Histologic type | 0.139* | |||
| Squamous cell carcinoma | 68 (59.6) | 31 (52.5) | 37 (67.3) | |
| Adenocarcinoma | 35 (30.7) | 23 (39.0) | 12 (21.8) | |
| Others | 11 (9.6) | 5 (8.5) | 6 (10.9) | |
| Initial tumor size, cm | 2.9±0.5 | 2.6±0.5 | 3.1±0.4 | <0.001* |
| Operation method | 0.013* | |||
| Minimally invasive surgery | 51 (44.7) | 33 (55.9) | 18 (32.7) | |
| Open | 63 (55.3) | 26 (44.1) | 37 (67.3) | |
| Pelvic lymph node | >0.999† | |||
| No | 1 (0.9) | 1 (1.7) | 0 (0) | |
| Sampling/dissection | 113 (99.1) | 58 (98.3) | 55 (100.0) | |
| Para-aortic lymph node | 0.074* | |||
| No | 89 (78.1) | 50 (84.7) | 39 (70.9) | |
| Sampling/dissection | 25 (21.9) | 9 (15.3) | 16 (29.1) | |
| Risk factors | ||||
| Lymphovascular space invasion | <0.001* | |||
| Negative | 58 (50.9) | 45 (76.3) | 13 (23.6) | |
| Positive | 56 (49.1) | 14 (23.7) | 42 (76.4) | |
| Depth of Invasion | <0.001* | |||
| Superficial 1/3 | 22 (19.3) | 20 (33.9) | 2 (3.6) | |
| Middle 1/3 | 48 (42.1) | 29 (49.2) | 19 (34.5) | |
| Deep 1/3 | 44 (38.6) | 10 (16.9) | 34 (61.8) | |
| Lymph node metastasis | <0.001* | |||
| Negative | 92 (80.7) | 59 (100.0) | 33 (60.0) | |
| Positive | 22 (19.3) | 0 (0) | 22 (40.0) | |
| Parametrium involvement | 0.007† | |||
| Negative | 104 (91.2) | 58 (98.3) | 46 (83.6) | |
| Positive | 10 (8.8) | 1 (1.7) | 9 (16.4) | |
| Resection margin involvement | 0.487† | |||
| Negative | 113 (99.1) | 59 (100.0) | 54 (98.2) | |
| Positive | 1 (0.9) | 0 (0) | 1 (1.8) |
Values are presented as mean±SD or n (%).
*P values were calculated by Pearson’s χ2 test.
†P values were calculated by Fisher’s exact test.