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Table 1 Comparison between case and control groups muscle thickness

From: MRI comparative study of levator ani muscle changes in nulliparous and multiparous females

 Case (n = 26)Control (n = 26)tP
Rt ilio-coccygeus (mm)  0.830.4
 Min.–max.2–6.23–6.8  
 Mean ± SD4.02 ± 1.154.3 ± 1.03  
Lt ilio-coccygeus (mm)  1.980.054
 Min.–max.1.4–5.12.6–6.4  
 Mean ± SD3.69 ± 1.14.3 ± 1.03  
Rt puborectalis (mm)  4.53≤.001
 Min.–max.1.7–127.2–12  
 Mean ± SD6.67 ± 2.349.1 ± 1.38  
Lt puborectalis (mm)  − 4.95≤.001
 Min.–max.1.7–117.8–15  
 Mean ± SD6.7 ± 2.259.5 ± 1.8  
Midpoint puborectalis (mm)  − 2.220.03
 Min.–max.2.6–115.3–9.5  
 Mean ± SD5.9 ± 2.16.9 ± 0.99