Questions 9 and 10 use the following information:Investigators launched a cohort study of random sample
Question Questions 9 and 10 use the following information:Investigators launched a cohort study of random sample of 20,000 residents in Richmond, CA who live within a 2-mile radius of an oil refinery.Participants were interviewed monthly to ascertain new lung cancer diagnoses, the study outcome. At baseline, prevalent cancer cases were excluded. Participants were interviewed monthly from January 1, 2020 to December 31, 2020. Aside from those diagnosed with lung cancer, all other cohort members were administratively censored on December 31, 2020. By June 30, 2020, 40 participants self-reported a new lung cancer diagnosis. By December 31, 2020, an additional 60 participants reported a new lung cancer diagnosis. 9. Calculate the following measures of disease frequency. Be sure to include units. Please show your work. a. Incidence rate of lung cancer over the entire follow up period b. Cumulative incidence of lung cancer over the last 6 months of follow up 10. Many participants found the monthly interviews to be burdensome and stopped responding. Which of the following is the most correct? Select one answer. a. The cumulative incidence over the 1-year of follow up is the preferred measure of disease frequency in this setting. b. If everyone sampled had responded over the 1-year of follow up, the incidence rate of lung cancer would be an unbiased estimate of the rate in the target population. c. Neither is correct. Health Science Science Nursing PHS AS.280.350 Share QuestionEmailCopy link Comments (0)


