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Socioeconomic Status and the Prevalence of Type 2 Diabetes Among Adults in Northwest China

Purpose The purpose of the study was to investigate (1) the associations of socioeconomic status, lifestyle risk factors, and the prevalence of newly diagnosed type 2 diabetes and (2) the mediating effects of lifestyle risk factors on the association of socioeconomic status and the prevalence of newly diagnosed type 2 diabetes among Chinese adults in northwest China. Methods Based on a correlational design and random multistage sampling in communities (N = 3243), data were collected through face-to-face interviews and anthropometric measurements. Education, occupation, and income were considered indicators of socioeconomic status. Results Approximately 7.5% persons interviewed had newly diagnosed type 2 diabetes. Chi-square analyses showed that higher socioeconomic indicators (higher income, nonmanual occupation) were associated with increased risk. Lifestyle risk factors, including alcohol use, unhealthy diet, and higher body mass index, were significantly positively associated with type 2 diabetes. Adjusting for demographic characteristics, hierarchical logistic regression analyses showed that unhealthy diet and high body mass index were significantly associated with type 2 diabetes. Conclusions Higher incomes and nonmanual occupations were related to a greater prevalence of type 2 diabetes, and high body mass index mediated these associations. These findings suggest that interventions for type 2 diabetes in China should be targeted at populations with high socioeconomic status and nonmanual occupations to reduce lifestyle risk factors and prevent diabetes.