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Application of the Marginal Beta-Binomial Model in Estimation the Overall Odds of Obesity Among Iranian Adults: Meta-Analysis Method Publisher



Zeinolabedini A1 ; Biglarian A2 ; Seifi B3 ; Bakhshi E1
Authors
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Authors Affiliations
  1. 1. Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
  2. 2. Department of Biostatistics, Social Determinants of Health Research Center, University of Social Welfare and Rehabilitation Sciences (USWRS), Tehran, Iran
  3. 3. Department of Physiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: International Journal of Endocrinology and Metabolism Published:2019


Abstract

Context: To obtain accurate and reliable estimation of overall obesity odds ratio (OR) a statistical method is needed to be designed to account for heterogeneity among studies. The marginal beta-binomial model is a new method with attractive features that make it robust for meta-analysis. Objectives: The aim of this study is the estimation of overall obesity OR among Iranian adults with particularly attention to age, sex, place of residence, and smoking status. Data Sources: We systematically reviewed all studies regarding obesity in Iranian adults in national and international journals that are published between 1990 and 2017, including PubMed, Scopus, SID, Google Scholar, Magiran, and IranMedex. The R software was used for data analysis and obtaining overall obesity OR using the marginal beta-binomial model. Results: A total of 18 studies, with a sample size of 258283, were included in our analysis. Results showed that increasing age, female sex, and residence in urban areas increases the odds of obesity. Using the age group 20 - 30 years as the reference, the overall obesity ORs for 30 - 40, 40 - 50, 50 - 60, and 60+ years were 2.13, 3.33, 3.15, and 2.33, respectively. The overall obesity OR for women was 2.35, compared with men. The estimated odds of obesity were 53% higher for urban adults. Smoking has a negative effect on obesity; the OR of obesity for smokers was 0.48 compared with non-smokers. Conclusion: Consistent results in our research can be used as a basis to reinforce health programs for prevention and treatment of obesity in Iran. Copyright © 2018, International Journal of Endocrinology and Metabolism.
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