Multiple Choice
The following data are based on a study of 375 people sampled in the following way: 125 people who have been diagnosed with throat cancer and 250 people who have not been diagnosed with throat cancer were selected from hospital records. Among other exposures, these individuals with and without throat cancer were asked about their smoking history. What is this study design?
A) Cross sectional study
B) Retrospective cohort study
C) Case-control study
D) Randomized trial
Correct Answer:
Verified
Correct Answer:
Verified
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