Baseline characteristics
| Baseline characteristics | n=2139 |
| Age (years), mean (SD) | 64.55 (10.80) |
| Body mass index (kg/m2),mean (SD) | 30.24 (6.65) |
| Diagnostic method, N (%) | |
| Hysteroscopy | 998 (46.7) |
| Blind biopsy | 630 (29.5) |
| Gynecologic curettage | 476 (22.3) |
| Not reported | 35 (1.6) |
| Surgical approach, N (%) | |
| Laparoscopic | 1432 (66.9) |
| Robotic | 594 (27.8) |
| Open | 113 (5.3) |
| Nodes approach, N (%) | |
| SLNB | 1686 (78.8) |
| SLNB+PLND (only one pelvic side) | 131 (6.1) |
| SLNB+PLND (both pelvic sides) | 188 (8.8) |
| SLNB+PLND (one side) + PALND | 7 (0.3) |
| SLNB+PLND (both sides) + PALND | 115 (5.4) |
| SLNB+PALND | 12 (0.6) |
| Tracer, N (%) | |
| Indocyanine green | 1865 (87.2) |
| Radiocolloid and indocyanine green | 189 (8.8) |
| Blue dye | 74 (3.5) |
| Blue dye and indocyanine green | 5 (0.2) |
| Radiocolloid and blue dye | 2 (0.1) |
| Not reported | 4 (0.2) |
| Tracer volume, N (%) | |
| 4 cc | 1544 (72.2) |
| 2 cc | 371 (17.3) |
| 1 cc | 90 (4.2) |
| Not reported | 134 (6.3) |
| SLN median, number (range) | 2 (0–6) |
| SLN distribution, N (%) | |
| Both pelvic sides | 1729 (80.8) |
| Right pelvic side | 152 (7.1) |
| Left pelvic side | 150 (7.0) |
| Both pelvic sides+aortic area | 41 (1.9) |
| Left pelvic side+aortic area | 8 (0.4) |
| Right pelvic side+aortic area | 1 (0.05) |
| Aortic area | 1 (0.05) |
| No SLN identified | 57 (2.7) |
| SLN diagnostic method, N (%) | |
| Ultrastaging | 1941 (90.7) |
| OSNA | 198 (9.3) |
| SLN involvement, N (%) | 205 (9.6) |
| Isolated tumor cells | 51 (24.9) |
| Micrometastases | 88 (42.9) |
| Macrometastases | 66 (32.2) |
OSNA, one-step nucleic acid amplification; PALND, para-aortic lymph node dissection; PLND, pelvic lymph node dissection; SLN, sentinel lymph node; SLNB, sentinel lymph node biopsy.