Genetic and Environmental Factors in Adolescent Depression
Author Information
Author(s): Elam Kit K., Su Jinni, Qin Weisiyu Abraham, Lemery-Chalfant Kathryn
Primary Institution: Indiana University, Bloomington, IN, United States
Hypothesis
We hypothesized that genetic predisposition for GrimAge would be associated with greater likelihood of membership in trajectories with higher depressive symptoms.
Conclusion
Adverse life events exacerbate genetic risk for depression in adolescents, highlighting the importance of environmental factors in mental health.
Supporting Evidence
- Adverse life events were associated with higher youth depression.
- Parental acceptance was associated with lower youth depression.
- Genetic predisposition for GrimAge was linked to depressive symptoms.
Takeaway
Kids who go through tough times and have certain genes are more likely to feel really sad as they grow up.
Methodology
The study used growth mixture modeling to analyze trajectories of depressive symptoms across early adolescence, considering genetic predisposition and environmental factors.
Potential Biases
Potential biases may arise from the lack of ethnically aligned genetic data and the reliance on self-reported measures.
Limitations
The study lacked ethnically aligned polygenic scores for Latinx samples and may have had limited power due to small trajectory sizes.
Participant Demographics
Participants were racially/ethnically diverse, including European American (47.8% female), African American (50% female), and Latinx (48% female) youth.
Statistical Information
P-Value
0.001
Confidence Interval
[1.05, 1.74]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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