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Trends in risk factors for cardiovascular disease in Canada: temporal, socio-demographic and geographic factors.


ABSTRACT:

Background

Temporal trends in risk factors for cardiovascular disease and the impact of socio-economic status on these risk factors remain unclear.

Methods

Using data from the National Population Health Survey and the Canadian Community Health Survey, we examined national trends in heart disease, hypertension, diabetes mellitus, obesity and smoking prevalence from 1994 to 2005, adjusting for age and sex. We stratified data by income adequacy category, body mass index and region of residence.

Results

An estimated 1.29 million Canadians reported having heart disease in 2005, representing increases of 19% for men and 2% for women, relative to 1994. Heart disease increased significantly in the lowest income category (by 27%), in the lower middle income category (by 37%) and in the upper middle income category (by 12%); however, it increased by only 6% in the highest income group. Diabetes increased in all but the highest income group: by 56% in the lowest income group, by 93% in the lower middle income group and by 59% in the upper middle income group. Hypertension increased in all income groups: by 85% in the lowest income group, by 80% in the lower middle income group, by 91% in the upper middle income group and by 117% in the highest income group. Obesity also increased in all income groups: by 20% in the lowest income group, by 25% in the lower middle income group, by 33% in the upper middle income group and by 37% in the highest income group. In addition to socio-economic status, obesity and overweight also modified the trends in risk factors. Diabetes increased to a greater extent among obese participants (61% increase) and overweight participants (25% increase), as did hypertension, which increased by 80% among obese individuals and by 74% among overweight individuals. Trends in diabetes, hypertension and obesity were consistent for all provinces.

Interpretation

During the study period, heart disease, hypertension, diabetes and obesity increased for all or most income groups in Canada. Further interventions supporting modification of lifestyle and risk factors are needed to prevent future cardiovascular disease.

SUBMITTER: Lee DS 

PROVIDER: S-EPMC2717674 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature

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Publications

Trends in risk factors for cardiovascular disease in Canada: temporal, socio-demographic and geographic factors.

Lee Douglas S DS   Chiu Maria M   Manuel Douglas G DG   Tu Karen K   Wang Xuesong X   Austin Peter C PC   Mattern Michelle Y MY   Mitiku Tezeta F TF   Svenson Lawrence W LW   Putnam Wayne W   Flanagan William M WM   Tu Jack V JV  

CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 20090720 3-4


<h4>Background</h4>Temporal trends in risk factors for cardiovascular disease and the impact of socio-economic status on these risk factors remain unclear.<h4>Methods</h4>Using data from the National Population Health Survey and the Canadian Community Health Survey, we examined national trends in heart disease, hypertension, diabetes mellitus, obesity and smoking prevalence from 1994 to 2005, adjusting for age and sex. We stratified data by income adequacy category, body mass index and region of  ...[more]

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