Abstract

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Background

Hypertension, or high blood pressure, is a major cause of disability and the leading risk factor for death around the world. Ongoing surveillance is necessary to monitor and assess the population burden of hypertension in Canada.

Data and methods

Using measured data from the Canadian Health Measures Survey, this analysis estimates average systolic blood pressure (BP), average diastolic BP, and hypertension prevalence, awareness, treatment and control in the population aged 20 to 79 years in the period from 2012 to 2015 by sex and age group. Crude and age-standardized overall estimates for 2007-2009, 2009-2011, 2012-2013 and 2014-2015 are also presented.

Results

Among adults aged 20 to 79 years, 24% of males and 23% of females had hypertension, defined as measured BP >=140/90 mmHg or past-month use of antihypertensive medication. Hypertension prevalence increased to 40% for males and 32% for females when the BP threshold was lowered to >=130/80 mmHg. Among adults, 84% of people with hypertension were aware of their condition, 80% of hypertensive people were treated for their condition, and 66% had controlled hypertension (measured BP <140/90 mmHg), though those aged 20 to 39 were less likely than older age groups to be aware, treated or controlled. Crude and age-standardized rates remained fairly stable during the period from 2007-2009 to 2014-2015.

Interpretation

Hypertension prevalence among adults has remained stable over time in Canada, and hypertension awareness, treatment and control have remained high. However, rates of awareness, treatment and control are lower among younger adults. This finding highlights the importance of initiatives to encourage this population to have their blood pressure checked and treated.

Keywords

Blood pressure, hypertension, prevalence, awareness, control

DOI: https://www.doi.org/10.25318/82-003-x201900200002

Findings

Hypertension, or high blood pressure, is a leading contributor to disability-adjusted life years. Canada’s reported rates of hypertension awareness, treatment and control are some of the highest in the world. This has been attributed to several factors, including the efforts of health care organizations and professionals to reduce the burden of hypertension, and the efficacy of knowledge translation about hypertension and its risks. Despite these efforts, hypertension affected almost 1 in 4 Canadian adults in 2012-2015 and is currently ranked as the leading risk factor for death globally. In 2010, the costs attributable to hypertension in Canada were estimated at $13.9 billion, and are forecasted to increase to $20.5 billion by 2020. Ongoing surveillance is necessary to monitor and assess the population burden of hypertension in Canada. [Full Text]

Authors

Jason DeGuire (jason.deguire@canada.ca), Janine Clarke, Kaitlyn Rouleau, and Joel Roy are with the Health Statistics Division, and Tracey Bushnik is with the Health Analysis Division, Statistics Canada, Ottawa, Ontario.

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