Table 4. Levator-urethra gap (LUG) and levator hiatus measured by 3-dimensional transperineal tomographic ultrasound at 6 weeks postpartum.
| Characteristics | Control group (n=26) | Treatment group (n=27) | Risk ratio (95% confidence interval) | P-value |
|---|---|---|---|---|
| Right-sided LUG (mm) | 24.9±4.2 | 21.1±2.9 | N/A | <0.01 |
| Left-sided LUG (mm) | 24.9±3.7 | 20.1±2.8 | N/A | <0.01 |
| Levator hiatus (cm2) | 17.7±2.7 | 15.5±2.4 | N/A | <0.01 |
| Unilateral avulsion (%) | 34.6 | 3.7 | 0.10 (0.01–0.78) | <0.01 |
| Bilateral avulsion (%) | 38.4 | 3.7 | 0.09 (0.01–0.70) | <0.01 |
Values are presented as mean±standard deviation.
N/A, not applicable.