Validation of the London Classification for Rectal Hyposensitivity in an Anorectal Manometry Database of 2540 Patients With Functional Defecatory Disorder.

Compared with studies in other populations, recent studies in Korean patients with constipation indicate distinct pathophysiological characteristics, with a notable trend toward a higher greater male preponderance, at a women to men ratio of 1.92:1. 17 , 18 Another factor would be the differences in the size of the pelvis and rectum as well as the results of anorectal manometry according to race or ethnicity. 19 - 21 Therefore, direct comparison between the studies of different populations may not be feasible.

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