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Author

Chang-Ho Chae

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Open access Sep 2026

Serum 25-Hydroxyvitamin D and Depressive Symptoms in a 12-Year Korean Occupational Cohort: A Threshold Effect Confined to Severe Deficiency

Background/Objectives: Low serum 25-hydroxyvitamin D [25(OH)D] has been proposed as a modifiable risk factor for depression, but the shape of the exposure–response relationship and its independence from sleep disturbance have not been characterised in a large occupational cohort with repeated measures. Methods: We anal...

Si-Ho Kim, S. Kim, Chang-Ho Chae · 0 citations

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