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Outcomes among 3.5 million newly diagnosed hypertensive Canadians

Hude Quan1, Guanmin Chen, Karen Tu

  • 1Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada. hquan@ucalgary.ca

The Canadian Journal of Cardiology
|March 8, 2013
PubMed

Insights

Newly diagnosed hypertension patients face higher risks of mortality and cardiovascular events, especially older adults, males, and those in rural or low-income areas. Targeted care is crucial for these high-risk hypertension groups.

Area of Science:

  • Cardiovascular Medicine
  • Public Health
  • Epidemiology

Background:

  • Assessed outcomes in 3.5 million Canadian adults diagnosed with hypertension.
  • Examined all-cause mortality, myocardial infarction, heart failure, and stroke.
  • Follow-up period extended up to 12 years.

Purpose of the Study:

  • To evaluate mortality and cardiovascular disease (CVD) incidence rates in a large, nationally representative cohort of newly diagnosed hypertensive adults.
  • To identify demographic and socioeconomic factors associated with adverse outcomes in this population.

Main Methods:

  • Utilized administrative health databases for a population-based hypertension cohort.
  • Defined outcomes and covariates using validated case definitions.
  • Employed Cox proportional hazards models to identify risk factors.

Main Results:

  • Over 6.1 years median follow-up, crude mortality was 22.4/1000 person-years.
  • Incidence rates: myocardial infarction (8.4), heart failure (8.5), stroke (6.9), any CVD hospitalization (19.3) per 1000 person-years.
  • Older age, male sex, low income, rural residence, and comorbidities independently increased risk.

Conclusions:

  • Hypertensive adults, particularly the elderly, males, and those in rural or low-income areas, experience higher mortality and poorer cardiovascular outcomes.
  • Highlights the need for innovative care strategies for high-risk hypertensive individuals to improve patient outcomes.
Abstract

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