Update on the Global Prevalence of Pica in Pregnant Women: A Meta-analysis

Objectives: Pregnancy pica is harmful to the mother and her baby. This study aimed update global prevalence of in pregnant women. Methods: Scopus, Science Direct, Wiley online, Google Scholar, PubMed databases were searched for observational studies until July 2021. search was done with keywords "pregnancy pica", "prevalence "pica frequency". After evaluating extracted based on inclusion exclusion criteria, 45 final articles selected. Calculations performed STATA software. Publication bias also assessed. Results: The pregnancy forty-five (Sample size: 21267) 34%. However, has decreased since 2015. In subgroup analysis, rural women, women lower education, younger unemployed living African geographical area had highest pica. Our results showed that this rate higher first trimester multiparous Conclusions: Therefore, it recommended implement educational programs, empower distribute nutritional supplements during pregnancy.