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Article
August 1981

Inheritance of Alcohol AbuseCross-Fostering Analysis of Adopted Men

Author Affiliations

From the Departments of Psychiatry and Genetics, Washington University School of Medicine, St Louis, and Jewish Hospital of St Louis (Dr Cloninger); and the Departments of Child and Youth Psychiatry, Umeå University School of Medicine, Umeå, Sweden (Drs Bohman and Sigvardsson).

Arch Gen Psychiatry. 1981;38(8):861-868. doi:10.1001/archpsyc.1981.01780330019001
Abstract

• The inheritance of alcoholism was studied in 862 Swedish men adopted by nonrelatives at an early age. Both the congenital and postnatal backgrounds of the adoptees modify their risk for alcohol abuse. We distinguish two forms of alcoholism that have distinct genetic and environmental causes and differ in their association with criminality, severity of alcohol abuse, and the frequency of expression in biological mothers. Postnatal milieu determines the frequency and severity of expression of the common type of susceptibility in both men and women. In contrast, the less common type is highly heritable in men but is seldom expressed in mothers of affected men.

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