Prediction of incidence proportion

Reference no: EM1318040

In 1947, the Framingham Study (Kannel, Dawber, Kagan, Revotskie7 &. Stokes, 1961) examined the development of heart disease in healthy volunteers. Since then, it has provided many insights into the risk: factors for various types of heart disease.

This discussion exercise considers data from one of its earliest published reports.

Table 6 in the original published report describes the Incidence of coronary heart disease (CHD) after six years of follow-up in men and women who were 40-59 years old at the time of their Initial examination.

The data for men is summarized as follows

Of the 454 men in this age group with initial cholesterol levels less than 21O mg/dL (low serum cholesterol group), there were 16 CHD onsets.
Of the 455 men in this age group with serum cholesterol levels between 21O and 244 mg/dL (intermediate serum cholesterol group), there were 16 CHD onsets.
Of the 424 men in this age group with cholesterol -values of at least 245 mg/dL (high serum cholesterol group), there were 51 CHD onsets.

Using the data for men calculate the risk or Incidence proportion of developing CHD by cholesterol level

Denote the 6-year risk of CHD In the low serum cholesterol group with the symbolP₀
Denote the 6-year risk of CHD in the intermediate serum cholesterol group with the symbolP₁.
Denote the 6-year risk of CHD In the high serum cholesterol group with the symbolP₂

Calculate the incidence proportion or the risk ratio that compares group 1 to group 0, and calculate the Incidence proportion or the risk ratio that compares group 2 to group 0. Then post a summary of your findings.

Reference no: EM1318040

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