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    J Addict Dis. 2010 Jan;29(1):84-97.

    Heritability of MMPI-2 scales in the UCSF family alcoholism study.

    Source

    Department of Genetics and the Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, NC 27599-7264, USA. igizer@unc.edu

    Abstract

    The current study evaluated the heritability of personality traits and psychopathology symptoms assessed by the Minnesota Multiphasic Personality Inventory 2nd Edition (MMPI-2) in a family-based sample selected for alcohol dependence. Participants included 950 probands and 1,204 first-degree relatives recruited for the University of California at San Francisco (UCSF) Family Alcoholism Study. Heritability estimates for MMPI-2 scales ranged from .25 to .49. When alcohol dependence was used as a covariate, heritability estimates remained significant but generally declined. However, when the MMPI-2 scales were used as covariates to estimate the heritability of alcohol dependence, the scales measuring antisocial behavior, depressive symptoms, and addictive behavior led to moderate increases in the heritability of alcohol dependence. This suggests that the scales may explain some of the non-genetic variance in the alcohol dependence diagnosis in this population when used as covariates, and thus may serve to produce a more homogeneous and heritable alcohol-dependence phenotype.

    PMID:
    20390702
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC2856115
    Free PMC Article

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