Deficiency and Insufficiency of Vitamin D in Women of Childbearing Age: A Systematic Review and Meta-analysis

Abstract Objective To estimate the prevalence of inadequate vitamin D level and its associated factors for women of childbearing age in Brazil. Methods A systematic reviewwas conducted (last updatedMay 2020).Meta-analyses were performed using the inverse-variance for fixed models with summary proportion calculation by Freeman-Tukey double arcsine. Reporting and methodological quality were assessed using the Joanna Briggs Institute tool for prevalence studies. Results Our review identified 31 studies, comprising 4,006 participants. All the studies had at least one weakness, mainly due to the use of convenience sampling and small sample size. The overall prevalence of vitamin D deficiency, insufficiency, and both deficiency and insufficiency were 35% (confidence interval, 95%CI: 34-37%), 42% (95%CI: 41-44%), and 72% (95%CI: 71-74%), respectively. Conclusion Although the magnitude of the prevalence of inadequate levels of vitamin D is uncertain, the evidence suggests that presence of vitamin D deficiency or insufficiency in women of reproductive age can cause moderate to severe problems.

Bibliographic Details

Main Authors:	Lucchetta,Rosa Camila, Lemos,Isabele Held, Gini,Ana Luísa Rodriguez, Cavicchioli,Sophia de Andrade, Forgerini,Marcela, Varallo,Fabiana Rossi, Nadai,Mariane Nunes de, Fernandez-Llimos,Fernando, Mastroianni,Patricia de Carvalho
Format:	Digital revista
Language:	English
Published:	Federação Brasileira das Sociedades de Ginecologia e Obstetrícia 2022
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-72032022000400409
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