If you wanted to conduct a case-control study to discoverwhether there was a relationship between Parkinson’s disease andhaving worked in a high stress occupation…
A. How might you go about selecting the cases and the controlsfor this study?
B. Assume that after you have selected the cases and the controlyou have a total of 1,000 cases and 2,000 controls. You find thatamong the cases 200 worked in a stressful occupation and among thecontrols 390 worked in a stressful occupation. What would be theodds ratio describing the relationship between working in a highstress occupation and having Parkinson’s disease?
C. Interpret the meaning of this odds ratio.
