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Activity Sheet #5
1. Which of the risk factors are significantly associated with 10-year coronary heart disease risk in a univariate analysis? Which of the risk factors are significantly associated with 10-year coronary heart disease risk in a multivariate analysis?
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2. If body mass index is increased by 5kg/m squared, what happens to the odds of coronary heart disease (how much does it increase?).
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3. Explain in 3 detailed sentences what happens when you fit the following regression model. Interpret the results.
glm(CMBMICHD ~ AGE4554 + AGE5564 + AGE6569, family=’binomial’)
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4. What happens if we include age as a continuous variable in the regression model instead of including the three age category variables?
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