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February 1971

Constipation in Twins

Author Affiliations

New York
From the Department of Pediatrics, New York University School of Medicine (Dr. Bakwin) and the departments of pediatrics, Bronx Lebanon Hospital Center and Albert Einstein College of Medicine (Dr. Davidson), New York.

Am J Dis Child. 1971;121(2):179-181. doi:10.1001/archpedi.1971.02100130133018

Constipation was present in 8.7% of 676 children (338 twin pairs). Monozygotic twins were concordant for constipation almost four times as frequently as dizygotic twins, indicating a genetic predisposition for constipation. Further evidence of the hereditary nature of constipation is shown by the family studies: the incidence of constipation in the children was increased whan a parent, a sibling, or a twin was constipated.