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The Mediation Role of Sleep Disturbances Between Vitamin D and Depressive Symptoms: A Cross-Sectional Study

Overview
Journal Brain Sci
Publisher MDPI
Date 2023 Nov 25
PMID 38002462
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Abstract

Depression and sleep disturbances are highly prevalent health problems that have been suggested to be associated with vitamin D deficiency. This study investigated whether sleep disturbances affect the association between vitamin D and depressive symptoms. A total of 425 patients with depression were included in this study. Spearman correlation coefficients were chosen to assess the relation between vitamin D concentrations and depressive symptomatology (according to the PHQ-9 and HAMD-17 scores). The GLM Mediation Model in the Medmod module for data analysis in Jamovi 2.2.5 was used to analyze the mediation models for sleep disturbances. Vitamin D concentrations were significantly correlated with PHQ-9 and HAMD-17 scale scores. In addition, item 3 was suggested to have a mediating effect between vitamin D and depressive symptoms in the mediating model of PHQ-9, and item 4 was suggested to have a mediating effect between vitamin D and depressive symptoms in the mediating model of HAMD-17. Sleep disturbances (especially difficulty falling asleep) are mediators between vitamin D and depressive symptoms, suggesting that increasing vitamin D levels at the right time to regulate sleep disturbances may improve depression symptoms, yet further research is necessary.

Citing Articles

Vitamin D: Evidence-Based Health Benefits and Recommendations for Population Guidelines.

Grant W, Wimalawansa S, Pludowski P, Cheng R Nutrients. 2025; 17(2).

PMID: 39861407 PMC: 11767646. DOI: 10.3390/nu17020277.

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