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Assortative mating for major affective disorder.

B Waters, I Marchenko, N Abrams

    Journal of Affective Disorders
    |February 1, 1983
    PubMed
    Summary
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    This study examined affective disorder in families of bipolar disorder patients. While assortative mating wasn't strongly evident, dual mating increased offspring affective disorder risk.

    Area of Science:

    • Psychiatry
    • Genetics
    • Family Studies

    Background:

    • Bipolar disorder (manic depression) has a significant genetic component.
    • Understanding genetic and environmental factors in bipolar disorder is crucial for effective treatment and prevention.
    • Assortative mating, the tendency to choose partners with similar traits, may influence the inheritance of psychiatric disorders.

    Purpose of the Study:

    • To investigate the prevalence of affective disorders in the families of individuals with bipolar disorder.
    • To examine the role of assortative mating in the transmission of affective disorders.
    • To assess the risk of affective and other psychiatric disorders in the adult offspring of bipolar probands.

    Main Methods:

    • Detailed examination of families of 26 married individuals with bipolar disorder.

    Related Experiment Videos

  • Ascertainment of affective disorder rates in spouses, parents, and siblings of bipolar patients.
  • Comparison with affective disorder prevalence in spouses and relatives of matched schizophrenic and healthy control groups.
  • Assessment of psychiatric disorders in adult offspring of bipolar probands, considering parental mating patterns.

    • Main Results:

    • No clear evidence of assortative mating for major affective disorder was found.
    • Spouses of bipolar patients showed a higher prevalence of affective disorder compared to controls.
    • Dual mating (both partners having affective disorder) significantly increased the risk of affective disorder in adult offspring.

    Conclusions:

    • Assortative mating for bipolar disorder is not strongly supported by this study.
    • The genetic contribution to bipolar disorder is evident through familial aggregation.
    • When both parents have affective disorder, the risk for offspring developing affective disorder is elevated, highlighting the impact of shared genetic and/or environmental factors.