Trial reportBMC geriatrics2022
The effects of vitamin D supplementation on frailty in older adults at risk for falls.
Trial report in BMC geriatrics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02166333 (Vitamin D Supplements to Prevent Falls in Older Adults), which is not on this map. Cited by 16 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.
Vitamin D Supplements to Prevent Falls in Older Adults: A Dose-Response Trial
Who cites it
16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.
- Association between 25-hydroxy vitamin D levels and risk of frailty and pre-frailty in elderly adults: a systematic review and dose-response meta-analysis of epidemiologic studies with GRADE assessment.Journal of translational medicine · 2025Pooled it
- Mapping Research Trends in Frailty and Nutrition: A Combined Bibliometric and Structured Review (2000-2024).Nutrients · 2025Pooled it
- Trial
- Associations of Hypertension and Orthostatic Hypotension With Subclinical Cardiovascular Disease.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024Trial
- Timing of orthostatic hypotension and its relationship with falls in older adults.Journal of the American Geriatrics Society · 2023Trial
- Updated perspectives on vitamin D deficiency, screening, supplementation and clinical guidance.Cardiovascular diabetology. Endocrinology reports · 2026Review
- Frailty Transition and Risk of New-Onset Arthritis Among Adults Aged 45 Years and Older: A Longitudinal Analysis of CHARLS.Healthcare (Basel, Switzerland) · 2026Article
- Frailty Transition Among Older Adults Living With HIV in Thailand: A 5-Year Longitudinal Study.Journal of the International AIDS Society · 2026Observational
- Micronutrient Supplementation in Frailty: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Healthcare (Basel, Switzerland) · 2025Review
- Frailty index is positively associated with stroke risk in nationally representative cohorts from the united States and China.Scientific reports · 2025Article
- Article
- Effects of Frailty Syndrome on Osteoporosis, Focusing on the Mediating Effect of Muscle Strength and Balance in Community-Dwelling Older Adults (≥60 years) in Iran: Results From the Amirkola Health and Aging Project Cohort Study.Geriatric orthopaedic surgery & rehabilitation · 2024Article
- New insights into healthy ageing, inflammageing and frailty using metabolomics.Frontiers in aging · 2024Review
- Frailty in Kingdom of Saudi Arabia-Prevalence and Management, Where Are We?Healthcare (Basel, Switzerland) · 2023Article
- [The concept and practical management of frailty in neurology].Revista de neurologia · 2023Review
- Prevention and Treatment of Vitamin D Deficiency in India: An Expert Group Consensus.Indian journal of endocrinology and metabolismReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundLow serum 25-hydroxyvitamin D [25(OH)D] level is associated with a greater risk of frailty, but the effects of daily vitamin D supplementation on frailty are uncertain. This secondary analysis aimed to examine the effects of vitamin D supplementation on frailty using data from the Study To Understand Fall Reduction and Vitamin D in You (STURDY).
methodsThe STURDY trial, a two-stage Bayesian, response-adaptive, randomized controlled trial, enrolled 688 community-dwelling adults aged ≥ 70 years with a low serum 25(OH)D level (10-29 ng/mL) and elevated fall risk. Participants were initially randomized to 200 IU/d (control dose; n = 339) or a higher dose (1000 IU/d, 2000 IU/d, or 4000 IU/d; n = 349) of vitamin D3. Once the 1000 IU/d was selected as the best higher dose, other higher dose groups were reassigned to the 1000 IU/d group and new enrollees were randomized 1:1 to 1000 IU/d or control group. Data were collected at baseline, 3, 12, and 24 months. Frailty phenotype was based on number of the following conditions: unintentional weight loss, exhaustion, slowness, low activity, and weakness (≥ 3 conditions as frail, 1 or 2 as pre-frail, and 0 as robust). Cox proportional hazard models estimated the risk of developing frailty, or improving or worsening frailty status at follow-up. All models were adjusted for demographics, health conditions, and further stratified by baseline serum 25(OH)D level (insufficiency (20-29 ng/mL) vs. deficiency (10-19 ng/mL)).
resultsAmong 687 participants (mean age 77.1 ± 5.4, 44% women) with frailty assessment at baseline, 208 (30%) were robust, 402 (59%) were pre-frail, and 77 (11%) were frail. Overall, there was no significant difference in risk of frailty outcomes comparing the pooled higher doses (PHD; ≥ 1000 IU/d) vs. 200 IU/d. When comparing each higher dose vs. 200 IU/d, the 2000 IU/d group had nearly double the risk of worsening frailty status (HR = 1.89, 95% CI: 1.13-3.16), while the 4000 IU/d group had a lower risk of developing frailty (HR = 0.22, 95% CI: 0.05-0.97). There were no significant associations between vitamin D doses and frailty status in the analyses stratified by baseline serum 25(OH)D level.
conclusionsHigh dose vitamin D supplementation did not prevent frailty. Significant subgroup findings might be the results of type 1 error.
trial registrationClinicalTrials.gov: NCT02166333 .
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What OpenQuestion 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 OpenQuestion graph.