From: MRI comparative study of levator ani muscle changes in nulliparous and multiparous females
Case (n = 26) | Control (n = 26) | t | P | |
---|---|---|---|---|
Rt ilio-coccygeus (mm) | 0.83 | 0.4 | ||
Min.–max. | 2–6.2 | 3–6.8 | ||
Mean ± SD | 4.02 ± 1.15 | 4.3 ± 1.03 | ||
Lt ilio-coccygeus (mm) | 1.98 | 0.054 | ||
Min.–max. | 1.4–5.1 | 2.6–6.4 | ||
Mean ± SD | 3.69 ± 1.1 | 4.3 ± 1.03 | ||
Rt puborectalis (mm) | 4.53 | ≤.001 | ||
Min.–max. | 1.7–12 | 7.2–12 | ||
Mean ± SD | 6.67 ± 2.34 | 9.1 ± 1.38 | ||
Lt puborectalis (mm) | − 4.95 | ≤.001 | ||
Min.–max. | 1.7–11 | 7.8–15 | ||
Mean ± SD | 6.7 ± 2.25 | 9.5 ± 1.8 | ||
Midpoint puborectalis (mm) | − 2.22 | 0.03 | ||
Min.–max. | 2.6–11 | 5.3–9.5 | ||
Mean ± SD | 5.9 ± 2.1 | 6.9 ± 0.99 |