Questions 4-7

477 38 Bone REGISTRY DATA COLLECTION VARIABLES Table 24-1 Sample Data of Height for Men with and without Prostate Cancer Age at Diagnosis or Case No. Case Status Race Reference Date for Control Case Subjects (years) W Height at Age 18 (meters) 78 Case 1.76 B 61 OU Case 1.70 A W N 81 Case 512 1.85 B 67 5 1.80 Case W 88 1.95 6 Case W 77 1.69 7 Case W 72 1.69 8 Case B 81 2.10 9 Control W 82 1.57 10 Control B 65 1.60 11 Control W 79 1.60 12 Control W 79 1.71 13 Control W 66 1.74 14 Control up ozon B lwellor ent shia 1.84otherits 15 Control Vilan Wo etote ismo89 mic slumbeb bel 16 Control O 76 2.00 boom these data are contrived. B, black; O, other; W, white. S elday at work) ? set phied secorlidavn evilonjello ano lion edi alota 4. What is the study design used here? Q. Cohort study aint sshommbe b. Randomized, controlled trial c. Case-control study d. Cross-sectional study 10 5. What is the odds ratio? (Use prostate cancer as the outcome and being tall [21.75] as the exposure. ) 6. The p value for the odds ratio is p = 0.61; therefore, there is a statistical association be- tween height and prostate cancer risk. a. True b. False 7. If there are differences in the distribution of height by age and race, and age and race are associated with the risk for prostate cancer, then age and race could potentially con- found the association between height and prostate cancer risk. a. True b . False