PMC

Association between the incidence rate of diabetes and BMI by ethnic group. The multivariate Poisson regression model included age, sex, BMI, BMI-ethnicity interaction, age-BMI interaction, income adequacy, survey year, and urban versus rural dwelling. Four knots were used to generate the restricted cubic splines. All estimates were weighted by the survey sample weight to allow for estimates to be generalizable to the overall Ontario population. Data were derived from the Ontario components of Statistics Canada’s NPHS and CCHS, 1996–2005.