Vitamin D deficiency during pregnancy in Turkey and the effect of the sunlight: a systematic review and meta-analysis

Author:

Yakar Burkay1ORCID,Kaya Mehmet Onur2

Affiliation:

1. Department of Family Medicine, Faculty of Medicine , Firat University , 23119 Elazig , Turkey

2. Biostatistics and Medical Informatics , Firat University , Elazig , Turkey

Abstract

Abstract Objectives vitamin D deficiency is a common and important problem during pregnancy. vitamin D deficiency in pregnancy can cause serious health problems for both mother and fetus. The aim of this study was to systematically review the literature for studies that assessed vitamin D status during pregnancy in the Turkey and affects of the sunlight on Vitamin D deficiency. Methods We conducted a systematic review and meta-analysis focused on vitamin D deficiency among pregnancy. PubMed, Scopus, Web of Science and Turkey citation index databases were searched between January 2010 and October 2019 was undertaken using keywords for ‘Vitamin D deficiency’ and ‘Pregnancy’ and ‘Turkey’ with English language restrictions imposed. Results A total of 66 studies were identified; 14 were included in the review. The prevalence of vitamin D deficiency in pregnancy was 83%, including all studies regardless of time in Turkey. When evaluated seasonal period, the prevalence of vitamin D deficiency was 73% in pregnant women in the sunny period, while it was 90% in the less sunny period. Conclusions The prevalence of vitamin D deficiency is high in pregnancy and is a major public health problem in Turkey. Turkey specific strategies should be developed for reducing vitamin D deficiency prevalence by investigation of risk factors and protective factors of vitamin D deficiency.

Publisher

Walter de Gruyter GmbH

Subject

Biochemistry (medical),Clinical Biochemistry,Molecular Biology,Biochemistry

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