Posted: September 7th, 2016

Compute the incidence rate of coronary artery disease in patients receiving the new cholesterol medication.

In the study described in Problem 4, some patients were not followed for a total of 10 years. Some suffered events (i.e., developed coronary artery disease during the course of follow-up), whereas others dropped out of the study. Table 3–12 displays the total number of person-years of follow-up in each group.
TABLE 3–11 Incident Coronary Artery Disease by Treatment
Number of Participants Number with Coronary Artery Disease
Cholesterol medication 400 28
Placebo 400 42
TABLE 3–12 Total Follow-Up Time by Treatment
Number with Coronary Artery Disease Total Follow-Up (years)
Cholesterol medication 28 3451
Placebo 42 2984
• a. Compute the incidence rate of coronary artery disease in patients receiving the new cholesterol medication.
• b. Compute the incidence rate of coronary artery disease in patients receiving a placebo.