Why must an odds ratio be used in a case-control study

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Reference no: EM133428468

Questions:

1. Why must an odds ratio be used in a case-control study rather than a risk ratio? An odd ratio must be used in a case control study rather than a risk ratio because it involves the exposure and the outcome. How accurate are the data about exposure in a case-control study? Explain your answer. I do believe the data about exposure in a case control study is very accurate because it helps determines if an exposure is associated with an outcome. How certain are you about the time order of the exposure and the outcome in a case control study? Explain your answer. A case control study always begins with an outcome and then goes back to examine the exposure, which makes the time order more certain. 4. What would happen to the odds ratio of a case-control study if the controls who were selected did not have the same opportunity to have the exposure as the cases?

Reference no: EM133428468

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