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Published on: February 22, 2018
Common genetic and environmental influences on major depressive disorder and conduct disorder
Anjali Subbarao1, Soo Hyun Rhee, Susan E Young
1Department of Psychology, University of Colorado, Boulder, CO, USA.
Abstract:
The evidence for common genetic and environmental influences on conduct disorder (CD) and major depressive disorder (MDD) in adolescents was examined. A sample of 570 monozygotic twin pairs, 592 dizygotic twin pairs, and 426 non-twin siblings, aged 12-18 years, was recruited from the Colorado Twin Registry. For the past year data, there was a significant correlation between the genetic influences on MDD and CD and, for the lifetime data, there was a significant correlation between the genetic influences on MDD and CD, and a significant correlation between the nonshared environmental influences on MDD and CD. Our results suggest that some genetic factors will increase an individual's vulnerability to both MDD and CD in adolescence.
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