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- Yuh, Jongil, et al.
(author)
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Temperament and Character Associated With Depressive Symptoms in Women: Analysis of Two Genetically Informative Samples
- 2009
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In: Journal of Clinical Psychology. - : Wiley. - 0021-9762 .- 1097-4679. ; 65:9, s. 906-924
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Journal article (peer-reviewed)abstract
- Although previous research has explored associations between personality and depressive symptoms, a limited number of studies have assessed the extent to which genetic and environmental influences explain the association. This study investigated how temperament and character were associated with depressive symptoms in 131 pairs of twin and sibling women in early adulthood, as well as 326 pairs of twin women in middle adulthood. Results indicated that genetic influences accounted for a moderate to substantial percentage of the association between these personality features and depressive symptoms, emphasizing the role of genetic influences. Nonshared environmental influences made important contributions to the association between character and depressive symptoms, particularly in the sample of middle-aged twin women. These findings suggest that unique social experiences and relationships with a partner in adulthood may play an important role in these associations between character and depressive symptoms. (C) 2009 Wiley Periodicals, Inc. J Clin Psychol 65:906-924, 2009.
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| 2. |
- Yuh, Jongil, et al.
(author)
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The role of temperament and social support in depressive symptoms: A twin study of mid-aged women
- 2008
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In: Journal of Affective Disorders. - : Elsevier BV. - 1573-2517 .- 0165-0327. ; 106:1-2, s. 99-105
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Journal article (peer-reviewed)abstract
- Background: Although research has found that temperament and social support are associated with depression, these relationships have not been explored in conjunction with one another as they relate to depression using a genetically informative design. This study investigated how the association among the three constructs is mediated. Methods: The sample in this study consisted of 326 pairs of adult monozygotic and dizygotic twins drawn from the Swedish Twin Registry. Twins were mothers of adolescent from married or partnered relationships. The genetic and environmental contributions to the association were evaluated by self-reported measures of temperament, social support, and depressive symptoms. Results: Multivariate genetic model fitting revealed that a moderate portion of genetic influences were common among the three central constructs of harm avoidance, perceived social support, and depressive symptoms. Limitations: The results may not be generalizable to depressive disorders in clinical settings. The measures were self-reported from a cross-sectional study. Conclusions: The findings suggest that the heritable component may contribute to genetic influences on an individual's ability to secure social support and thus to genetic risk for depressive symptomatology in women.
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