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Table 5 Comparison between rest and contraction of the sphincter thickness at 6 and 12 o’clock positions and the diameters in PAUS

From: Perianal ultrasound (PAUS): visualization of sphincter muscles and comparison with digital-rectal examination (DRE) in females

Wilcoxon

 

Asympt. Sign.

c < r (%)

c > r (%)

c = r (%)

Rest—contraction

EAS 12

0.20

50.00

44.29

5.71

 

EAS 6

0.77

51.43

41.43

7.14

 

IAS 12

0.66

42.86

50.00

7.14

 

IAS 6

0.90

47.14

42.86

10.00

 

hor. diameter

0.12

54.29

35.71

10.00

 

vert. diameter

0.00

78.57

20.00

1.43

  1. Wilcoxon-test, r = rest, c = contraction. c < r: incidence of a smaller value during contraction than at rest in percentage. c > r: incidence of a greater value during contraction than value at rest in percentage. c = r: incidence of similar values during contraction and at rest in percentage