13-14. In a closed cohort study that included 2,000 males age 40-59…

Question Answered step-by-step 13-14. In a closed cohort study that included 2,000 males age 40-59… 13-14.  In a closed cohort study that included 2,000 males age 40-59 years,  400 had initial serum cholesterol levels of less than 220 mg %, 900 had levels of 220- 270 mg % and 700 had levels greater than 270 mg %. Among these three  cholesterol classes: (1) less than 220; (2) 220-270; and (3) greater than 270, the  number of new cases of coronary heart disease during the first year of follow-up were 3, 12, and 14 respectively.  A.    What was the incidence of coronary heart disease within each of the three cholesterol classes? (Assume complete follow-up.)   B.     Using cholesterol class 1 (<220) as the reference or unexposed group, calculate the absolute excess (the risk difference) risk of coronary heart disease for people in cholesterol class 2 (220-270). Interpret your results. Health Science Science Nursing NURSING 704 Share QuestionEmailCopy link Comments (0)