Published in:
Open Access
01-12-2021 | Systematic review update
Vitamin D status and blood pressure in children and adolescents: a systematic review of observational studies
Authors:
Myriam Abboud, Fatme Al Anouti, Dimitrios Papandreou, Rana Rizk, Nadine Mahboub, Suzan Haidar
Published in:
Systematic Reviews
|
Issue 1/2021
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Abstract
Background
Childhood hypertension is a growing public health problem. Simultaneously, hypovitaminosis D is widespread in this population and could be associated with hypertension. This study systematically reviewed the literature on the relationship between vitamin D status and blood pressure (BP) in children and adolescents.
Methods
Following the PRISMA guidelines, PUBMED, MEDLINE, CINAHL, EMBASE, Cochrane Library, and
ClinicalTrials.gov and the gray literature without language or time restrictions were searched. We included observational studies, assessed their risk of bias, and extracted data on population characteristics, vitamin D status and BP measurements, and the association between the two variables. A narrative analysis of the studies was performed.
Results
In total, 85 studies were included. Prospective cohort studies showed no association between vitamin D and BP, and generally, they were flawed. Also, the majority of non-prospective cohort studies (cross-sectional, retrospective, case-control) did not report an association between vitamin D and BP. They were mostly flawed regarding BP measurement and adjusting to potential confounders.
Conclusion
The results on the relationship between vitamin D status and BP in children and adolescents varied between the studies, and mainly pointed towards lack of association.