Vitamin D supplementation for the prevention of total cancer incidence and mortality: An updated systematic review and meta-analysis
In: Heliyon, 2022
academicJournal
Zugriff:
INTRODUCTION: Previous randomized controlled trials (RCTs) and meta-analyses of RCTs evaluating vitamin D supplementation for the prevention of cancer incidence and mortality have found inconsistent results and no meta-analysis has assessed the quality of the evidence available. We, therefore, aimed to perform an updated meta-analysis by including recent large-scale RCTs and assessing the quality of the pooled evidence. METHODS: We searched several databases and trial registers from inception to April 2022. We used a random-effects model to estimate pooled risk ratios (RRs) and 95% confidence intervals (CIs). We used the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) considerations to evaluate the certainty of evidence. RESULTS: We included 13 RCTs in our study. Vitamin D supplementation had no effect on the risk of total cancer incidence (RR 0.99, 95% CI: 0.94–1.04; I(2)= 0%), total cancer mortality (RR 0.93, 95% CI: 0.84–1.03; I(2)= 24%) and total mortality (RR 0.92, 95% CI: 0.82–1.04; I(2)= 36%). The overall quality of evidence was high for all outcomes. DISCUSSION: Vitamin D supplementation is ineffective in reducing total cancer incidence and mortality in largely vitamin D-replete older adult populations. Future research should be based on populations with a higher prevalence of vitamin D deficiency and should involve more extended follow-up periods. STUDY PROTOCOL: PROSPERO database, CRD42021285401.
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Vitamin D supplementation for the prevention of total cancer incidence and mortality: An updated systematic review and meta-analysis
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Autor/in / Beteiligte Person: | Cheema, Huzaifa Ahmad ; Fatima, Maurish ; Shahid, Abia ; Bouaddi, Oumnia ; Elgenidy, Anas ; Rehman, Aqeeb Ur ; Oussama Kacimi, Salah Eddine ; Hasan, Mohammad Mehedi ; Lee, Ka Yiu |
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Zeitschrift: | Heliyon, 2022 |
Veröffentlichung: | Elsevier, 2022 |
Medientyp: | academicJournal |
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