title: Prevalence of obesity and overweight in adults and children in Iran; a systematic review.
abstract: BACKGROUND
  Obesity is one of the most important underlying risk factors for chronic disease. Dramatically increasing and following complication of obesity should be alerted to health politicians and practitioners to prevent associated health risks. This review aimed to give a better insight into the prevalence of obesity and overweight in different areas of Iran.
  
  
  METHODS
  All published internal (SID, Irandoc, Iranmedex), and international (Web of Knowledge, Pubmed, Scopus) source studies, reported the prevalence of overweight/obesity among normal population samples, during Jan 2005 through Jan 2014, were assessed in this review. Paper selection processes were done by two researchers separately. Studies which met the eligible criteria were included in this review.
  
  
  RESULTS
  One hundred ninety three eligible studies enter into our review. Of 193 final selected studies, 86 (15 national, 71 sub national) of them were reported the prevalence of obesity/overweight in adult, and 107 studies (11 national, 96 sub national) in under-18 by individual. The range of overweight and obesity prevalence in national studies in adult, was 27.0-38.5 (95% CI: 26.8-27.1, 37.2-39.8), and 12.6-25.9 (95% CI: 12.2-13.0, 24.9-26.8), separately. In under-18 the range of overweight and obesity prevalence in national studies were 5.0-13.5 (95% CI: 4.5-5.5, 13.4-13.6), and 3.2-11.9 (95% CI: 3.0-3.4, 11.3-12.4).
  
  
  CONCLUSIONS
  Obesity as an important public health problem has been discussed in recent few decades worldwide. Although the national reported prevalence of obesity in Iran was not considerably diverse, but remarkable differences were seen in the sub national prevalence which must be noticed more in political health programs especially among women and children.
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Shahrzad
authors.initials: S
authors.lastname: Jafari-Adli
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Jouyandeh
authors.affiliation: Department of Community Medicine, Alborz University of Medical Sciences, Karaj, Iran ; Non communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Qorbani
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Ahmadreza
authors.initials: A
authors.lastname: Soroush
authors.affiliation: Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, 5th floor of Shariati Hospital, North Karegar St., P.O Box 1411413137, Tehran, Iran.
authors.forename: Bagher
authors.initials: B
authors.lastname: Larijani
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran ; Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, 5th floor of Shariati Hospital, North Karegar St., P.O Box 1411413137, Tehran, Iran.
authors.forename: Shirin
authors.initials: S
authors.lastname: Hasani-Ranjbar
keywords: Iran; Metabolic syndrome; Obesity; Overweight; Prevalence