The prevalence of overweight and obesity among Iranian military personnel: a systematic review and meta-analysis

Background: The overweight and obesity among military personnel, as an occupational group, beside the health issues, might affect their military performance. A systematic review and meta-analysis were conducted to estimate the pool prevalence of overweight and obesity among Iranian military personnel. Methods: The national databases including Science Information Database, MagIran, and the following international databases; Web of Science, Medline via PubMed, and Scopus were searched, up to December 2017, for relevant published studies without time limitation. Results: Totally, 1431 studies were reterived and 10 studies included in meta-analysis. The pooled prevalence of overweight and obesity were 41% (95% CI: 26, 57%) and 13% (95% CI: 10, 17%), respectively. In the subgroup analyses, a lower and higher prevalence of overweight was reported in the ground (12%) and Navy (69%) forces military, recpectively. For the obesity, the air forces had the lowest prevalence (11%) and the ground and Navy forces military had highest prevalence (15%). The prevalence of overweight and obesity were slightly higher in studies conducted after 2014. Conclusion: Our findings suggest a high prevalence of overweight and obesity in the military personnel as a high-risk occupational group. Owing to the high observed heterogeneity among the included studies, large representative studies are needed to estimate the prevalence of overweight and obesity in the military personnel.