The Associations Between Serum 25-hydroxyvitamin D Level and the Risk of Total Fracture and Hip Fracture
Overview
Orthopedics
Affiliations
Introduction: Data on the association between serum 25(OH) vitamin D level and the risk of fractures are conflicting. This study aimed to provide a summary of prospective cohort or nested case-control studies on the association between serum 25(OH) vitamin D level and the risk of total fractures and hip fractures.
Methods: We identified relevant studies by searching the PubMed, EMBASE, and OVID databases from their inception to June 1, 2016. We included published prospective cohort or nested case-control studies evaluating the associations of serum 25(OH) vitamin D level with the fracture risk. Two reviewers abstracted the data independently. Relative risks (RRs) with 95% confidence intervals (CIs) were derived throughout the whole analysis.
Results: Sixteen prospective cohort studies and three nested case-control studies were included. We found that low serum 25(OH) vitamin D level was significantly associated with the risk of total fractures (RR 1.25, 95% CI 1.06-1.43; I = 31.3%, p for heterogeneity = 0.15) and hip fractures (RR 1.48, 95% CI 1.29-1.68; I = 0%, p for heterogeneity = 0.51). The hip fracture risk was increased by 40% for each SD decrease in serum 25(OH) vitamin D level (RR 1.40, 95% CI 1.20-1.61; I = 0%, p for heterogeneity = 0.51). The per SD decrease in serum 25(OH) vitamin D level was not associated with the increased risk of total fractures (RR 1.14, 95% CI 0.93-1.35; I = 63.2%, p for heterogeneity = 0.04).
Conclusions: Our study suggests that low serum 25(OH) vitamin D level is associated with increased risks of total and hip fractures. In the analyzed studies, the per SD decrease in serum 25(OH) vitamin D level was associated with the hip fracture risk but not with the total fracture risk.
Stadelmaier J, Bantle G, Gorenflo L, Kiesswetter E, Nikolakopoulou A, Schwingshackl L BMC Med. 2025; 23(1):36.
PMID: 39838444 PMC: 11752614. DOI: 10.1186/s12916-025-03860-2.
Masse O, Mercurio C, Dupuis S, Arruda A, Desforges K, Dugre N BMJ Open. 2024; 14(12):e085902.
PMID: 39672580 PMC: 11647347. DOI: 10.1136/bmjopen-2024-085902.
Vitamin D Deficiency Does Not Affect Cognition and Neurogenesis in Adult C57Bl/6 Mice.
Doumit M, El-Mallah C, El-Makkawi A, Obeid O, Kobeissy F, Darwish H Nutrients. 2024; 16(17).
PMID: 39275253 PMC: 11396937. DOI: 10.3390/nu16172938.
Cianferotti L, Bifolco G, Caffarelli C, Mazziotti G, Migliaccio S, Napoli N Nutrients. 2024; 16(11).
PMID: 38892706 PMC: 11174536. DOI: 10.3390/nu16111773.
Byun S, Kim H, Lee S, Kim S Osteoporos Int. 2024; 35(5):775-783.
PMID: 38240755 DOI: 10.1007/s00198-024-07022-7.