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Do ethnic groups living in Ontario differ in their cardiovascular risk profiles?. Maria Chiu, MSc, PhD Candidate Inst. of Medical Science, University of Toronto Inst. for Clinical Evaluative Sciences. Citation:
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Do ethnic groups living in Ontario differ in their cardiovascular risk profiles? Maria Chiu, MSc, PhD Candidate Inst. of Medical Science, University of Toronto Inst. for Clinical Evaluative Sciences
Citation: Comparison of cardiovascular risk profiles among ethnic groups using population health surveys between 1996 and 2007 Maria Chiu, Peter C. Austin, Douglas G. Manuel, and Jack V. Tu CMAJ 2010 Apr. DOI:10.1503/cmaj.091676
Acknowledgment: We thank all the participants of Statistics Canada’s NPHS and CCHS, and the staff from Statistics Canada who assisted in the collection and management of the survey data. Funding Sources: Heart and Stroke Foundation of Ontario CIHR Canada Graduate Scholarship Canadian Cardiovascular Outcomes Research Team
Study objective To compare the prevalence of a. CVD risk factors (e.g. smoking, diabetes, etc.) b. Heart disease c. Stroke in the 4 largest ethnic groups in Ontario: • White, Chinese, South Asian, and Black
Methods Data source National Population Health Survey (NPHS) and Canadian Community Health Survey (CCHS) • Population-based cross-sectional surveys conducted by Statistics Canada • Provide timely, reliable estimates of health determinants, health status and health system utilization • Include: Aged 12+ in private dwellings • Exclude: People on Indian Reserves, Canadian Forces Bases
Study variables Ethnic/racial background Q: People living in Canada come from many different cultural and racial backgrounds. Are you: • White • Chinese • South Asian (e.g. East Indian, Pakistani, Punjabi, Sri-Lankan) • Black • etc…
Study variables CVD risk factors CVD • Current smoking • Obesity • Diabetes • Hypertension • Psychosocial stress • Inadequate fruit/vegetables • Inadequate physical activity • Non-regular alcohol intake • Heart disease • Stroke
Methods Statistical analysis • Statistical software: SAS v9.1 • Age-sex standardized prevalence of CVD risk factors, heart disease, stroke • Standard population: 2001 Ontario census • All estimates weighted by sample weights from Statistics Canada • Bootstrap method for variance estimation for 95% CI and P values
Results Study sample size, NPHS/CCHS 1996-2007 TOTAL N = 163 797
Results Sociodemographic characteristics (%)
Results Age-sex standardized prevalence (%) 1. Major CV risk factors
Results Age-sex standardized prevalence (%) 1. Major CV risk factors—by sex
Results Age-sex standardized prevalence (%) 2. Other CV risk factors
Results Age standardized prevalence (%) 2. Other cardiovascular risk factors – by sex
Results * P<0.05 Prevalence of heart disease (%) 95% CI * *
Results * P<0.05 Prevalence of stroke (%) 95% CI *
Discussion • Striking differences in cardiovascular risk profiles across 4 major ethnic groups in Ontario • Every group can improve their cardiovascular health • Chinese: physical inactivity • South Asian: diabetes, hypertension, physical inactivity • White: smoking, obesity, psychosocial stress • Black: diabetes, hypertension, obesity (females), physical inactivity (females) • Help identify priorities for development of ethnic-specific cardiovascular disease-prevention programs