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Int J Cardiol. 2017 Jan 15;227:347-354. doi: 10.1016/j.ijcard.2016.11.062. Epub 2016 Nov 9.

Marked differences in cardiovascular risk profiles in middle-aged and older Chinese residents: Evidence from a large Australian cohort.

Author information

1
Sydney Nursing School, University of Sydney, New South Wales, Australia. Electronic address: kjin2224@uni.sydney.edu.au.
2
Charles Perkins Centre, Sydney Nursing School, University of Sydney, New South Wales, Australia.
3
Sydney Nursing School, University of Sydney, and, New South Wales, Australia; Sydney Local Health District, New South Wales, Australia.
4
Sydney Nursing School, University of Sydney, New South Wales, Australia.
5
Sydney School of Public Health, University of Sydney, New South Wales, Australia.

Abstract

BACKGROUND:

Although Chinese form the largest non-English speaking group in Australia, cardiovascular disease (CVD) risk profiles among Chinese Australians have not been comprehensively examined, nor has the effect of mixed-Chinese ethnicity been adequately explored. This study is to investigate cardiovascular risk among Chinese, mixed-Chinese, and non-Chinese Australians.

METHODS:

Using data from 266,696 Australian participants from the 45 and Up Study (2006-2009), this study investigated cardiovascular risk among Chinese (n=3454), mixed-Chinese (n=1062), and non-Chinese (n=262,180) participants. Poisson regression models with a robust error variance were used to estimate prevalence ratio (PR) and 95% confidence intervals (CI) for CVD (coronary heart disease (CHD) and stroke) and six major risk factors (hypertension, diabetes, high cholesterol, smoking, overweight/obesity, and physical inactivity) by ethnicity using non-Chinese participants as the reference group. Each outcome was adjusted for sociodemographic characteristics.

RESULTS:

Compared with non-Chinese Australians, Chinese had lower prevalence of CHD (PR=0.67; 95% CI=0.59-0.75) and stroke (PR=0.67; 95% CI=0.51-0.88). Of the risk factors, Chinese had higher prevalence of diabetes (PR=1.25; 95% CI=1.12-1.39), smoking (PR=1.22; 95% CI=1.04-1.43) and physical inactivity (PR=1.48; 95% CI=1.41-1.55) but lower prevalence of hypertension (PR=0.90; 95% CI=0.86-0.95), high cholesterol (PR=0.87; 95% CI=0.79-0.95), and overweight/obesity (PR=0.46; 95% CI=0.43-0.48). Mixed-Chinese had higher prevalence of CVD and worse CVD risk profiles compared with Chinese.

CONCLUSIONS:

There are marked differences in the prevalence of CVD and risk factors among three groups. The noticeable variations in CVD risk between Chinese and mixed-Chinese indicate that conventional classification of treating all Chinese as homogeneous could be misleading. More investigation into the health outcomes of mixed ancestry is warranted.

KEYWORDS:

Cardiovascular disease (CVD); Cardiovascular risk factors; Chinese immigrants; Secondary prevention

PMID:
27839817
DOI:
10.1016/j.ijcard.2016.11.062
[Indexed for MEDLINE]

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