Temporal trends in cardiovascular disease risk factors among different ethnic groups groups

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Read the full article: http://bmjopen.bmj.com/content/5/8/e007232.abstract

Abstract

Objectives
To determine ethnic-specific temporal trends in cardiovascular risk factors in Ontario between 2001 and 2012.

Design
A population-based repeated cross-sectional study.

Setting
Ontario, Canada.

Participants
219 276 participants of the Canadian Community Health Survey during the period 2001 to 2012.

Main outcome measures
Age-standardised ethnic-sex-specific prevalence of cardiovascular risk factors for three time periods: 2001–2004, 2005–2008 and 2009–2012 among Canada’s four major ethnic groups: white, South Asian, Chinese and black.

Results
During the study period, the prevalence of diabetes increased 2.3-fold among South Asian males and 1.9-fold among black females. The prevalence of obesity increased over time across all ethnic groups, with the largest relative increases observed among males of Chinese and black descent. The prevalence of hypertension increased the most among black females. Smoking prevalence decreased by more than 20 per cent among South Asian, Chinese and white females. Overall, South Asian males and black males and females showed the greatest declines in cardiovascular health over the study period.

Conclusions
We observed important ethnic differences in the temporal trends in cardiovascular risk factor profiles in Ontario. Awareness of the direction and magnitude of these risk factor trends may be useful in informing targeted strategies for preventing cardiovascular diseases in multiethnic populations.

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