Case Control Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Jun 28, 2014; 20(24): 7933-7940
Published online Jun 28, 2014. doi: 10.3748/wjg.v20.i24.7933
Table 3 Ano-rectal manometry n (%)
Resting pressureNormal (60-80 mmHg)Decreased (< 50 mmHg)Increased (> 80 mmHg)
Total (n = 763)333 (43.6)373 (48.9)57 (7.5)
Men (n = 118)65 (55.1)42 (35.6)11 (9.3)
Women (n = 645)268 (41.5)331 (51.3)46 (7.1)
χ2 (P value)3.70 (NS)5.02 (< 0.05)0.32 (NS)
External anal sphincter pressureNormal (> 120 mmHg)Decreased (< 120 mmHg)
Total (n = 763)322 (42.2)441 (57.8)
Men (n = 118)92 (78.0)26 (22.0)
Women (n = 645)230 (35.6)415 (64.3)
χ2 (P value)64.4 (< 0.001)35.7 (< 0.001)
Rectal sensitivityNormalDecreasedIncreased
Total (n = 763)393 (51.5)97 (12.7)273 (35.8)
Men (n = 118)54 (45.8)29 (24.6)35 (29.7)
Women (n = 645)339 (52.6)68 (10.5)238 (36.9)
χ2 (P value)0.92 (NS)6.87 (<0.01)1.17 (NS)
Recto-anal inhibitory reflexNormal (20-30 mL)Decreased or absent (> 60 mL)Increased (< 10 mL)
Total (n = 763)614 (80.5)69 (9.0)80 (10.5)
Men (n = 118)102 (86.4)10 (8.5)6 (5.1)
Women (n = 645)515 (79.8)59 (9.1)71 (11.0)
χ2 (P value)1.55 (NS)0.02 (NS)2.35 (NS)