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Résumé (français)

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Résumé (anglais)

OBJECTIVE: To determine associations of diet, physical activity and television (TV) viewing time with obesity among aboriginal and non-aboriginal youth in conjunction with socio-economic variables. DESIGN: Cross-sectional study of differences between aboriginal and non-aboriginal groups and associations between lifestyle and socio-economic factors with obesity were examined. SETTING: Population data from the Canadian Community Health Survey Cycle 2.2 conducted in 2004 in the ten provinces of Canada. SUBJECTS: A total of 198 aboriginal and 4448 non-aboriginal Canadian youth aged 12-17 years. RESULTS: Compared to non-aboriginal youth, physical activity participation among aboriginal youth was higher, but consumption of vegetables and dairy products was lower, and more aboriginal youth were ‘high’ TV watchers. Low income adequacy was associated with decreased odds for obesity among aboriginal youth in contrast to higher odds among non-aboriginal youth. Non-aboriginal ‘high’ TV watchers consumed more soft drinks and non-whole-grain products than did ‘low’ TV watchers. Physical activity participation did not differ between ‘high’ and ‘low’ TV watchers for both groups, and was associated with lowered odds for obesity only among aboriginal youth. CONCLUSIONS: Sociodemographic and lifestyle risk factors associated with obesity differ between aboriginal and non-aboriginal youth. These findings may be useful for guiding intervention efforts.