EPBI 3101 Introduction to Epidemiology All exam questions must be comple Bonus Questions Answer questions in the bubble sheet completed first - no credit otherwise (5pts. each) Incident Uterine Radiation Cancer No Uterine Cancer Total 360 No radiation Total 90 187 263 450 37. What type of study is this ? A. Cross-sectional study 162 Case-control study Ecological study D. Prospective cohort study 38. Calculate the measure of association. State the formula first and show all your work. a. RR = 2.17 OR = 2.17 C. RR = 1.62 d. OR = 1.62 39. The investigator decided that the relationship between radiation exposure and uterine cancer was causal. Calculate the attributable risk. State the formula and show your work. Express your answer as the number of cases per any multiplier (e.g., 1000, 10,000, etc.). a. 172 per 1,000 . 17.20 per 1,000 1.72 per 1,000 d. 0.172 per 1,000 40. Provide a complete one-sentence interpretation of your finding. - a. If women who had been accidentally exposed to low dose radiation had not been exposed, 172 cases of uterine cancer per 1,000 women could be prevented. If women who had been accidentally exposed to low dose radiation had not been exposed, 172 cases of uterine cancer could be prevented If women who had been accidentally exposed to low dose radiation had not been exposed, 172 cases of uterine cancer per 100 women could be prevented d. If women who had been accidentally exposed to low dose radiation had not been exposed, 0.172 cases of uterine cancer per 1,000 women could be prevented V2 - Page 9 of 9