QUESTION 12 A group of researchers are interested in conducting a clinical trial

Question

QUESTION 12 A group of researchers are interested in conducting a clinical trial to determine whether a nevw cholesterol-lowering agent was useful in preventing coronary heart disease (CHD). They identified 12,327 potential participants for the trial. At the initial clinical exam, 309 were discovered to have CHD. The remaining subjects entered the trial and were divided equally into the treatment and placebo groups. Of those in the treatment group, 505 developed CHD after 5 years of follow-up while 477 developed CHD during the same period in the placebo group. What was the prevalence of CHD per 1,000 at the initial exam?

Explanation / Answer

The prevalence of coronary heart disease (CHD) at the initial exam was 309 cases of CHD divided by 12,327 participants. That is equals to a prevalence of 25.1 cases of CHD per 1,000 persons.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.