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Table 3 Comparison of anorectal manometry data in patients with different delivery modes*

From: Association of delivery mode and number of pregnancies with anorectal manometry data in patients with postpartum constipation

Characteristics, median (range)

Spontaneous delivery (n = 97)

Caesarean delivery (n = 30)

P

Rest pressure of the rectum

27.4 (19.3, 47.8)

29.6 (18.8, 44.7)

0.923

Rest pressure of the anal sphincter

87.8 (64.3, 105.5)

84.0 (64.7, 102.1)

0.712

Length of the anal sphincter

2.3 (1.6, 2.7)

2.2 (1.3, 2.7)

0.585

Effective length of the anal sphincter

1.4 (0.8, 2.2)

1.6 (0.9, 2.1)

0.849

First sensation volume

20.0 (15.0, 20.0)

20.0 (15.0, 20.0)

0.906

First threshold for the desire to defecate

40.0 (30.0, 60.0)

50.0 (30.0, 60.0)

0.398

Threshold of defecate distress

90.0 (60.0, 120.0)

110.0 (60.0, 120.0)

0.409

Perception threshold of the maximum volume

120.0 (115.0, 180.0)

160.0 (120.0, 180.0)

0.238

Rectal compliance

4.0 (2.1, 7.6)

3.7 (2.4, 9.6)

0.865

Relaxation rate of the anal sphincter

6.2 (0.0, 20.0)

10.3 (0.0, 21.6)

0.393

Pressure gradient of the rectum-anal sphincter

-40.7 (-67.4, -16.6)

-49.3 (-59.6, -4.0)

0.867

Maximum squeeze press (MSP)

104.7 (80.3, 130.7)

121.1 (98.2, 142.5)

0.133

Change in contracting sphincter pressure

14.3 (4.5, 25.0)

19.6 (13.4, 40.0)

0.023

  1. * Group according to the most recent delivery mode