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Adult obesity.

Michael Tjepkema1

  • 1Health Statistics Division at Statistics Canada, Toronto Regional Office, 25 St. Clair Avenue E., Toronto, Ontario M4T 1M4. Michael.Tjepkema@statcan.ca

Health Reports
|September 20, 2006
PubMed
Summary

Adult obesity in Canada significantly increased from 14% in 1978/79 to 23% in 2004. This rise in obesity is linked to sedentary lifestyles and increased risks of chronic conditions like diabetes and heart disease.

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Area of Science:

  • Public Health
  • Epidemiology
  • Nutrition Science

Background:

  • Obesity prevalence has been a growing public health concern globally.
  • Understanding trends in adult obesity is crucial for developing effective health interventions.

Purpose of the Study:

  • To compare the prevalence of adult obesity in Canada between 1978/79 and 2004.
  • To examine demographic, socio-economic, and lifestyle factors associated with obesity.
  • To investigate the relationship between obesity and chronic conditions.

Main Methods:

  • Utilized data from Canadian Community Health Survey: Nutrition (2004), Canada Health Survey (1978/79), and Canadian Heart Health Surveys (1986-1992).
  • Included US data from the National Health and Nutrition Examination Survey (1999-2002) for comparison.
  • Employed descriptive statistics and logistic regression models to analyze obesity prevalence and its associations with chronic diseases, controlling for covariates.

Main Results:

  • Obesity prevalence in Canadian adults (18+) rose from 14% in 1978/79 to 23% (5.5 million) in 2004.
  • An additional 36% of adults were classified as overweight in 2004.
  • Obesity was associated with sedentary leisure activities, infrequent fruit and vegetable consumption, and increased likelihood of high blood pressure, diabetes, and heart disease as Body Mass Index (BMI) increased.

Conclusions:

  • There has been a substantial increase in adult obesity in Canada over a 25-year period.
  • Obesity is strongly linked to unhealthy lifestyle factors and significantly elevates the risk of major chronic diseases.
  • Findings highlight the urgent need for public health strategies to address the rising obesity epidemic and its associated health consequences.

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