Association between socioeconomic status and overweight and obesity among Inuit adults: International Polar Year Inuit Health Survey, 2007–2008

OBJECTIVES: To evaluate the socio-economic correlates of overweight and obesity among Inuit undergoing rapid cultural changes. STUDY DESIGN: A cross-sectional health survey of 2,592 Inuit adults from 36 communities in the Canadian Arctic. METHODS: Main outcome measures were overweight and obesity (BMI>25 kg/m(2) and >30 kg/m(2), respectively) and as characteristics were similar, groups were combined into an at-risk BMI category (BMI>25 kg/m(2)). Logistic regression was used to determine the association between various sociodemographic characteristics and physical activity with overweight and obesity. RESULTS: The prevalence of overweight and obesity was 28 and 36%, respectively, with a total prevalence of overweight and obesity of 64%. In analyses of sociodemographic variables adjusted for age, gender and region, higher education, any employment, personal income, and private housing were all significantly positively correlated with an at-risk BMI (p≤0.001). Smoking, Inuit language as primary language spoken at home, and walking were inversely associated with overweight and obesity. CONCLUSIONS: The current findings highlight the social disparities in overweight and obesity prevalence in an ethnically distinct population undergoing rapid cultural changes.