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KMID : 1044620180510060289
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Journal of Preventive Medicine and Public Health
2018 Volume.51 No. 6 p.289 ~ p.297
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Measuring and Decomposing Socioeconomic Inequalities in Adult Obesity in Western Iran
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Najafi Farid
Pasdar Yahya
Hamzeh Behrooz
Rezaei Satar
Nazar Mehdi Moradi
Soofi Moslem
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Abstract
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Objectives: Obesity is a considerable and growing public health concern worldwide. The present study aimed to quantify socioeconomic inequalities in adult obesity in western Iran.
Method: A total of 10 086 participants, aged 35-65 years, from the Ravansar Non-communicable Disease Cohort Study (2014-2016) were included in the study to examine socioeconomic inequalities in obesity. We defined obesity as a body mass index ≥30 kg/m2 . The concentration index and concentration curve were used to illustrate and measure wealth-related inequality in obesity. Additionally, we decomposed the concentration index to identify factors that explained wealth-related inequality in obesity.
Results: Overall, the prevalence of obesity in the total sample was 26.7%. The concentration index of obesity was 0.04; indicating that obesity was more concentrated among the rich (p<0.001). Decomposition analysis indicated that wealth, place of residence, and marital status were the main contributors to the observed inequality in obesity.
Conclusions: Socioeconomic-related inequalities in obesity among adults warrant more attention. Policies should be designed to reduce both the prevalence of obesity and inequalities in obesity by focusing on those with higher socioeconomic status, urban residents, and married individuals.
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KEYWORD
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Health equity, Social class, Socioeconomic factors, Obesity, Iran
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