ReviewIndian journal of orthopaedics2024
The Global Prevalence of Vitamin D Deficiency in the Elderly: A Meta-analysis.
Review in Indian journal of orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- The effects of vitamin D supplementation on inflammatory biomarkers: an umbrella study of meta-analysis on randomized controlled trials.Inflammopharmacology · 2026Pooled it
- Vitamin D in Photosynthetic Organisms and Fungi: Sterol Photochemistry, UV-B Availability, and Biofortification Potential.Current issues in molecular biology · 2026Review
- Article
- Review
- Micronutrient Status, Health Implications, and Assessment Aproaches in Older Adults: A Narrative Review of Recent Studies.Life (Basel, Switzerland) · 2026Review
- Vitamin D deficiency and disease conditions relevant to: Orthopaedic translation.Journal of orthopaedic translation · 2026Review
- How deficient are we? A retrospective analysis of vitamin D status in 85,892 Turkish adults.BMC public health · 2026Observational
- Editorial: Vitamin D and aging: associations with mortality, cognition, chronic diseases, and metabolic conditions in elderly individuals.Frontiers in endocrinology · 2026Article
- Low Vitamin D Status and Post-Stroke Depression, Falls, and Functional Recovery in Older Adults with Nonvalvular Atrial Fibrillation-Associated Ischemic Stroke.Clinical interventions in aging · 2026Article
- Molecular insights into the role of vitamin D in atopic dermatitis: pathogenesis, diagnosis, and emerging therapies.Frontiers in immunology · 2026Review
- Regulatory role of vitamin DScientific reports · 2025Article
- Rethinking Vitamin D Deficiency: Controversies and Practical Guidance for Clinical Management.Nutrients · 2025Review
- Impact of Vitamin D Status and Supplementation on Brain-Derived Neurotrophic Factor and Mood-Cognitive Outcomes: A Structured Narrative Review.Nutrients · 2025Review
- Optimizing serum 25(OH)D levels to mitigate the risk of age-related ocular diseases: insights from a large-scale prospective cohort study.Nutrition journal · 2025Article
- Vitamin D and Colorectal Cancer Prevention: Immunological Mechanisms, Inflammatory Pathways, and Nutritional Implications.Nutrients · 2025Review
- Burden of Vitamin D and Vitamin B12 Deficiency among Older Patients in North India: a Single-Centre Study.Maedica · 2024Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Vitamin D deficiency is widely prevalent among the elderly, posing significant health risks. This study aims to determine the global prevalence of vitamin D deficiency in the elderly. Methods: A systematic review and meta-analysis was conducted, examining databases including Scientific Information Database (SID), Medline (PubMed), ScienceDirect, Scopus, Embase, and Google Scholar until January 2023. The publication bias of the studies was assessed using the Results: The prevalence of vitamin D deficiency, defined as levels below 20 ng or 50 nmol was found to be 59.7% (95% CI 45.9-72.1). Furthermore, a review of six studies involving 6748 elderly individuals showed a prevalence of 27.5% (95% CI 21.8-34.1) for deficiency defined between 20 and 30 ng or 50-75 nmol. Additionally, a meta-analysis of seven studies with a sample size of 6918 elderly individuals reported a prevalence of 16% (95% CI 10.2-24.1) for deficiency defined above 30 nmol or 75 nmol. Conclusion: The results of the present study reveal that the prevalence of vitamin D deficiency among the elderly is high and requires the attention of health policymakers at the World Health Organization to prioritize extensive information dissemination and screening to mitigate the adverse effects on their quality of life. Supplementary Information: The online version contains supplementary material available at 10.1007/s43465-023-01089-w.
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What Socratic holds
Registered trials
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 Socratic graph.