Chapter 9. Case-Control Studies
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
In a hospital-based case-control study, which of the following guidelines may be useful in sampling controls?
A. Choose them from a single diagnostic category
B. Choose them from a variety of diagnostic groups
C. Choose them from chronic conditions
D. Choose them from acute conditions
In a case-control study, matching may be performed to select controls in order to
B. control selection bias.
C. improve statistical precision.
D. increase the strength of association.
In contrast to a prospective cohort study, a case-control design may be preferred for the study of
C. shorter latent periods.
The preferred measure of association in a case-control study is the
E. attributable risk percent.
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?