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Depression and Diet Quality, US Adolescents and Young Adults: National Health and Nutrition Examination Survey, 2015-March 2020

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Publisher Elsevier
Date 2024 Aug 25
PMID 39182647
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Abstract

Background: Depression is a common mental health disorder.

Objective: The objective of this study was to explore the association between diet quality, as measured by the Healthy Eating Index 2020 (HEI-2020), and depression symptoms among US adolescents and young adults aged 12 to 29 years.

Design: The study design was a cross-sectional secondary data analysis.

Participants: Data from the first 24-hour dietary recall for adolescents and young adults aged 12 to 29 years in the National Health and Nutrition Examination Survey from 2015 to March 2020 (n = 4750) were analyzed.

Main Outcome Measure: Depression was defined as a score ≥10 on the Patient Health Questionnaire, reflecting moderate or severe symptoms in the previous 2 weeks.

Statistical Analyses Performed: HEI-2020 total (range, 0-100) and component scores were calculated for those with and without depression. Predicted HEI-2020 scores were estimated from linear regression models, adjusting for age, gender, race and Hispanic origin, family income, and seeing a mental health professional in the past year. Statistical analyses accounted for the complex sample design.

Results: The prevalence of depression among adolescents and young adults was 7.8% (95% CI 6.3% to 9.5%). Total HEI-2020 score was 45.9 (95% CI 45.0 to 46.7) out of 100 on a given day during 2015 to March 2020. Among young people with depression, total HEI-2020 score was lower than among those without depression (41.7 vs 46.2; P < .001). After adjustment for covariates, the difference was attenuated, but remained significant. In adjusted analyses, HEI-2020 component scores were lower for those with depression compared with those without depression for the adequacy components: total fruits (1.4 vs 1.7; P = .03), whole fruits (1.2 vs 1.7; P < .01), total vegetables (2.1 vs 2.6; P < .01), greens and beans (0.8 vs 1.2; P < .01), and total protein foods (3.6 vs 4.0; P = .02) out of a maximum score of 5. There were no statistically significant differences observed for whole grains, dairy, seafood and plant proteins, fatty acids, saturated fats, refined grains, sodium, or added sugars.

Conclusions: Overall diet quality is low among young people. Diet quality, especially consumption of fruits, vegetables, and protein foods was lower among young people with depression compared with those without depression.

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