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Chapter 9. Case-Control Studies
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In a case-control study, the individuals with the disease of interest are limited to those who are newly diagnosed. We may describe these cases as
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In a hospital-based case-control study, which of the following guidelines may be useful in sampling controls?
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A. Choose them from a single diagnostic category
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B. Choose them from a variety of diagnostic groups
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C. Choose them from chronic conditions
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D. Choose them from acute conditions
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In a case-control study, matching may be performed to select controls in order to
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B. control selection bias.
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C. improve statistical precision.
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D. increase the strength of association.
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In contrast to a prospective cohort study, a case-control design may be preferred for the study of
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C. shorter latent periods.
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The preferred measure of association in a case-control study is the
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E. attributable risk percent.
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Increasing the number of controls per case in a case-control study tends to reach diminishing returns in terms of increasing statistical power beyond what ratio?
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