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Comparison pelvic floor related parameters.
| BND/cm | Anal levator muscle area/cm2 | Anal levator muscle hole diameter/cm | Anterior and posterior diameter/cm | |
| Treatment group | 16.4 ± 3.8 | 19.7 ± 1.9 | 4.5 ± 0.4 | 5.9 ± 0.3 |
| Control group | 20.2 ± 4.8 | 23.1 ± 2.6 | 4.9 ± 0.2 | 6.4 ± 0.5 |
| t value | 5.531 | 7.19 | 5.389 | 5.857 |
