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Iran Red Crescent Med J. 2015 Jun 23;17(6):e22479. doi: 10.5812/ircmj.17(6)2015.22479. eCollection 2015 Jun.

Obesity and Related Factors in Iran: The STEPS Survey, 2011.

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Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, IR Iran.
Center for Diseases Control, Ministry of Health and Medical Education, Tehran, IR Iran.
Department of Physiology, Medicine School, Tehran University of Medical Sciences, Tehran, IR Iran.



To date, no study has addressed the association between race/ethnicity and obesity considering other sociodemographic and lifestyle factors in Iran.


The current study aimed to study lifestyle and the environmental factors affecting obesity in the Iranian subjects of the STEPS Survey, 2011.


The study was conducted on 8639 subjects (aged ≥ 20 years) in the STEPS Survey 2011 in Iran under supervision of the World Health Organization (WHO). Height and body weight were measured following the standardized procedures. Generalized Estimating Equations (GEE) method was used to examine factors associated with obesity. The examined variables were age, gender, race/ethnicity, place of residence, employment status, physical activity, smoking status, and educational level.


Overall, 22.3% of the subjects were obese. In a GEE model, a healthy weight status among adults was associated with being younger, male, in a rural residence, employees, spending more time engaged in physical activity, being a smoker and having a moderate or high level of education. These associations were statistically significant after adjusting for other variables.


The study results suggest a need for targeted interventions and continued surveillance for the Iranian adults.


Ethnic Groups; Obesity; Race; Smoking

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