Trial reportInternational journal of geriatric psychiatry2023
Effect of vitamin D supplementation on depression in older Australian adults.
Trial report in International journal of geriatric psychiatry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.
- Efficacy of vitamin D supplementation in patients diagnosed with depression: a dose-response meta-analysis of randomized controlled trials.Frontiers in nutrition · 2026Pooled it
- Efficacy of vitamin D supplementation on depressive symptoms in older patients: a meta-analysis of randomized controlled trials.Frontiers in medicine · 2024Pooled it
- Effect of vitamin D supplementation on depression in older Australian adults.International journal of geriatric psychiatry · 2023Trial
- Clinical outcomes of mitochondrial-enhancing nutraceutical supplementation in psychiatric disorders: A systematic review.General psychiatry · 2026Article
- Vitamin D and Vitamin BDiseases (Basel, Switzerland) · 2026Review
- The Role of Vitamin D in the Management of Major Depressive Disorder: A Systematic Review.Pharmaceuticals (Basel, Switzerland) · 2025Review
- The association of sun sensitivity, sun protective behaviors and depression in both genders: a study based on the U.S. population.Frontiers in public health · 2025Article
- Meta-analysis of the effect of vitamin D on depression.Frontiers in psychiatry · 2025Review
- Article
Corrections and comments
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Authors and funding
19 authors at 9 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate whether vitamin D supplementation reduces depressive symptoms and incidence of antidepressant use.
methodsWe used data from the D-Health Trial (N = 21,315), a randomized double-blind placebo-controlled trial of monthly vitamin D
resultsAnalyses of PHQ-9 scores included 20,487 participants (mean age 69·3 years, 46% women); the mean difference (MD) in PHQ-9 score (vitamin D vs. placebo) was 0·02 (95% CI -0·06, 0·11). There was negligible difference in the prevalence of clinically relevant depression (PHQ-9 score ≥10) (odds ratio 0·99; 95% CI 0·90, 1·08). We included 16,670 participants in the analyses of incident antidepressant use (mean age 69·4 years, 43% women). Incidence of antidepressant use was similar between the groups (hazard ratio [HR] 1·04; 95% CI 0·96, 1·12). In subgroup analyses, vitamin D improved PHQ-9 scores in those taking antidepressants at baseline (MD -0·25; 95% CI -0·49, -0·01; p-interaction = 0·02). It decreased risk of antidepressant use in participants with predicted 25(OH)D concentration <50 nmol/L (HR 0·88; 95% CI 0·75, 1·02; p-interaction = 0·01) and increased risk in those with predicted 25(OH)D ≥ 50 nmol/L (HR 1·10; 95% CI 1·01, 1·20).
conclusionMonthly supplementation with high-dose vitamin D CLINICAL
trial registrationThe trial is registered on the Australian New Zealand Clinical Trials Registry: ACTRN12613000743763. https://www.anzctr.org.au/.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.