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Tracking diabetes: prevalence, incidence and risk factors.

OBJECTIVES
This article examines the prevalence and incidence of diabetes among Canadians aged 18 or older and risk factors associated with developing the condition.


DATA SOURCES
The data are from the 1994/95, 1996/97, 1998/99 and 2000/01 National Population Health Survey and the 2000/01 Canadian Community Health Survey, both conducted by Statistics Canada.


ANALYTICAL TECHNIQUES
Descriptive statistics on the prevalence and incidence of self-reported diabetes were computed. Multiple logistic regression was used to identify predictors of incident diabetes. Age-adjusted rates were used to compare diabetic and non-diabetic respondents on a variety of health measures.


MAIN RESULTS
In 2000/01, 4.5% of Canadians aged 18 or older, an estimated 1.1 million, reported having diabetes. The incidence from 1994/95 to 2000/01 was 4.9 new cases per 1,000 person-years at risk. When the possible confounding effects of a number of factors were taken into account, advancing age, family history, sedentary leisure time and excess weight were associated with developing diabetes.