Background: The prevalence of vitamin D deficiency in the Iranian community is very high.
Women and older people are at the higher risk of vitamin D deficiency. Aim: This study
aimed to estimate the prevalence of vitamin D deficiency in Iran by combining the results of
various studies. Methods: This was a systematic review and meta-analysis. Separate
strategies were developed for search in national databases (Irandoc, Magiran, SID) and
international databases (Web of Science, PubMed, and Scopus) using the keywords of …

Method: PubMed, Google Scholar, Web of Science, Scopus, Science direct and scientific
information databases were searched for papers related to the prevalence of vitamin D
insufficiency for all age groups in Iran from 2000 to 2018. The Joanna Briggs Institute
prevalence critical appraisal tool was applied for the assessment of the methodological
quality of these studies. The Meta-analysis is based on the random effect model using
Comprehensive Meta-analysis data analysis. Results: Eighty-seven original articles reported …