Question: In a case-control study that was designed to measure the association between leukemia and having indoor pets, 45 cases and 180 controls were enrolled. What

In a case-control study that was designed to measure the association between leukemia and having indoor pets, 45 cases and 180 controls were enrolled. What is the estimated prevalence of leukemia in the population? Select one: a. 25% b. 0.25% c. 45 per 225 (or 200 per 1000) population d. Cannot be calculated based on this information, because the ratio of controls to cases is arbitrary and irrelevant to prevalce

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