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[A twin study on externalizing problem behavior in adolescents in Chongqing City]
Wenfen Zhu1, Lingna Kong1, Yixiao Fu1
1Nursing College, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China.
Wei Sheng Yan Jiu = Journal of Hygiene Research
|June 16, 2018
Summary
Adolescent externalizing problem behaviors are significantly influenced by both genetic factors and individual environmental influences. Family cohesion, stress, and parenting styles also correlate with these behaviors.
Area of Science:
- Behavioral Genetics
- Developmental Psychology
- Adolescent Psychology
Background:
- Externalizing problem behaviors in adolescents are a significant concern.
- Understanding the interplay of genetic and environmental factors is crucial for effective interventions.
Purpose of the Study:
- To investigate the contributions of additive genetic factors (A), shared environmental factors (C), and individual-specific environmental factors (E) to adolescent externalizing problem behavior.
- To explore the correlations between externalizing behaviors and various family environmental factors.
Main Methods:
- A twin study design involving 66 twin pairs (aged 12-18) from Chongqing City.
- Assessment of adolescent externalizing behaviors using the Youth Self-Report (YSR).
- Evaluation of environmental factors using the Parenting Styles and Dimensions Questionnaire (PSDQ), Family Stresses Questionnaire (FSQ), Family Adaptability and Cohesion Scale (FACES), and Stressful Life Event (SLE) scale.
- Structural equation modeling (SEM) to analyze genetic and environmental influences.
Main Results:
- Additive genetic factors (A) accounted for 57% and individual-specific environmental factors (E) for 43% of the variance in externalizing problem behavior.
- Significant negative correlation found between externalizing behaviors and family cohesion (r = -0.221, P < 0.05).
- Positive correlations observed between externalizing behaviors and family stress (r = 0.226, P < 0.05), stressful life events (r = 0.194, P < 0.05), authoritarian parenting (r = 0.235, P < 0.05), and permissive parenting (r = 0.212, P < 0.05).
Conclusions:
- Adolescent externalizing problem behavior is substantially influenced by additive genetic factors and individual-specific environmental factors, with genetics playing a major role.
- Family environment, including cohesion and stress levels, along with specific parenting styles (authoritarian and permissive), are significantly associated with externalizing behaviors.
- Further research can explore the complex gene-environment interactions in the development of adolescent behavioral problems.
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