Variable | All | Non-SLN (Group 1) | SLN (Group 2) | P value |
All cases, N | 460 | 192 | 268 | |
Age, years, median (IQR) | 56 | 55 (29–63) | 56 (50–68) | 0.063 |
BMI, kg/m2, median (IQR) | 29 | 29 (24–33) | 28 (24.9–33) | 0.270 |
Menopausal state, n (%) | 0.325 | |||
Pre-menopausal | 163 (35.4) | 63 (32.8) | 100 (37.3) | |
Post-menopausal | 297 (64.6) | 129 (67.2) | 168 (62.7) | |
Co-morbidities, n (%) | ||||
Any co-morbidity | 211 (45.9) | 88 (45.8) | 123 (45.9) | 0.989 |
Hypertension | 127 (27.6) | 49 (25.5) | 78 (29.1) | 0.459 |
Diabetes | 48 (10.4) | 14 (7.3) | 34 (12.7) | 0.065 |
Symptoms, n (%) | ||||
AUB | 290 (63.0) | 120 (62.5) | 170 (63.4) | 0.845 |
Irregular period | 8 (4.9) | 2 (3.2) | 6 (3.7) | 0.416 |
US diagnosis, n (%) | <0.001 | |||
Endometrial polyp | 268 (58.3) | 132 (68.8) | 136 (50.7) | |
Inhomogeneous endometrial thickening | 192 (41.7) | 60 (31.2) | 132 (49.3) | |
Endometrial thickness, n (%) | 0.814 | |||
<20 mm | 367 (79.8) | 152 (79.2) | 215 (80.2) | |
≥20 mm | 93 (20.2) | 40 (20.8) | 53 (19.8) |
*Mann–Whitney U test.
AUB, abnormal uterine bleeding; BMI, body mass index; LN, sentinel lymph node; US, ultrasound.