Table 4.
Demographic, B-mode ultrasound imaging, and elastographic characteristics for control and patients with endometrial cancer based on menopausal status
| Variables | Premenopause | Postmenopause | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||||
| Control | n | Case | n | P | Control | n | Case | n | P | |
| Age, mean (SD) | 38.3 (7.3) | 18 | 42.6 (4.3) | 15 | 0.052 | 56.3 (5.7) | 10 | 56.8 (5.8) | 14 | 0.730 |
| Minimum-maximum | 25-48 | 34-49 | 49-66 | 48-69 | ||||||
| Weight (kg), mean (SD) | 58.8 (9.5) | 18 | 79.5 (26.8) | 15 | 0.004* | 65.6 (10.9) | 10 | 70.7 (9.5) | 14 | 0.612 |
| BMI (kg/m2), mean (SD) | 23.7 (3.3) | 18 | 33.2 (9.7) | 15 | 0.001* | 26.7 (4.4) | 10 | 28.6 (3.6) | 14 | 0.208 |
| Strain ratio, mean (SD) | 0.42 (0.14) | 18 | 1.04 (0.65) | 14 | <0.001* | 0.54 (0.17) | 5 | 1.09 (0.71) | 14 | 0.016* |
| Endometrial thickness (mm), gray scale, mean (SD) | 5.69 (2.66) | 18 | 12.3 (9.03) | 14 | NA | 2.39 (0.74) | 10 | 11.9 (8.9) | 14 | 0.003* |
| Minimum–maximum (mm) | 2.6-12.5 | 3.6-32.7 | 1.3-3.8 | 2.4-30.6 | ||||||
| Elastography distance (mm), green scale, mean (SD) | 5.74 (2.89) | 18 | 6.39 (4.65) | 14 | 0.584 | 1.57 (1.47) | 10 | 6.07 (7.24) | 12 | 0.057 |
| Distance ratio, gray/green, mean (SD) | 0.99 (0.29) | 17 | 1.96 (2.12) | 13 | 0.073 | 0.75 (0.22) | 6 | 2.00 (1.03) | 10 | 0.012* |
When the endometrium was totally replaced by tumor, the elastographic distance was defined as 0. In these cases, the distance ratio of gray/green was invalid. NA: Not applicable in premenopausal women due to cyclical changes during the menstrual cycle, SD: Standard deviation, BMI: Body mass index