Objective: This prospective study examines the potential independent effects of leisure-time physical activity and family history on the incidence of heart disease. Data: The data are from the 1994-1998 household longitudinal components of National Population Health Surveys, conducted by Statistics Canada every two years. The sub-sample used in this study consists of 9,080 respondents aged 20 and over who were in good health and free of heart disease at baseline. Methods: Multiple logistic regression was used to estimate the independent effects of physical activity and family history on the risk of heart disease. Controlled risk factors include age, sex, education, household income, smoking status, high blood pressure, diabetes, and body mass index. The standard errors of regression coefficients were estimated with bootstrap approach to take into account the complex survey design effects. Results: After controlling for the strong effects of family history and other risk factors, individuals who engaged in regular physical activity of at least moderate level at baseline had lower odds of developing heart disease at follow-up than those who were sedentary. Among individuals with a family history of heart disease, those who regularly participated in at least moderate physical activity still had lower odds of developing heart disease than sedentary individuals. Conclusion: Despite the strong association of family history with the incidence of heart disease, regular and at least moderate physical activity appears to be associated with reduced risk of heart disease.
Learning Objectives: At the conclusion of the presentation, the participants will be able to identify the indepent effects of physical activity and family history on incidence of heart disease
Keywords: Heart Disease, Physical Activity
Presenting author's disclosure statement:
Organization/institution whose products or services will be discussed: None
I have a significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.
Relationship: Statistics Canada employee