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Does Income Inequality Predict Adolescent Depressive Symptoms?
Sondre Aasen Nilsen1,2, Kyrre Breivik1, Kjell Morten Stormark1
1Regional Centre for Child and Youth Mental Health and Child Welfare, NORCE Norwegian Research Centre, Bergen, Norway.
Psychological Science
|March 30, 2026
Summary
This study found that income inequality does not significantly impact adolescent depression rates in Norway. The research indicates no meaningful link between economic disparities and youth mental health trends.
Area of Science:
- Public Health
- Sociology
- Psychiatry
Background:
- Income inequality is a proposed driver of adolescent mental health issues.
- Previous research often lacks robust methodology, such as low-powered cross-sectional designs.
- Understanding this relationship is crucial for public health interventions.
Purpose of the Study:
- To investigate the within-municipality effect of income inequality on adolescent depressive symptoms in Norway.
- To address limitations of prior research by using a large-scale, longitudinal dataset.
- To determine if income inequality meaningfully predicts changes in youth depression.
Main Methods:
- A preregistered, large-scale study using multilevel modeling and equivalence testing.
- Analysis of approximately 550,000 respondents across 340 Norwegian municipalities from 2010 to 2019.
- Examination of the within-municipality effect of income inequality, controlling for family financial situation and gender.
Main Results:
- The overall within-municipality effect of income inequality on adolescent depressive symptoms was not statistically significant or practically meaningful.
- No significant interaction was found between income inequality and family financial situation.
- A minor gender interaction indicated slightly increased depressive symptoms in females and decreased in males with rising inequality, but effects were too small to be meaningful.
Conclusions:
- Changes in income inequality do not appear to meaningfully predict or explain changes in adolescent depressive symptoms in Norway.
- The findings challenge the notion that economic disparities are a primary driver of youth depression in this context.
- Further research may explore other socioeconomic or individual factors influencing adolescent mental health.
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