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A randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. The primary outcome is incident coronary artery disease. Participants are free of coronary artery disease at the start of the study and randomized to receive either the new medication or a placebo. Some suffered events (i.e., developed coronary artery disease during the course of follow-up), followed for 10 years.

                           # participants               # cornary art

chol med                  400                              28:

placebo                    400                            42:

a) compute RR of disease receiving new med as compared to placebo:  RR=_______.

b) compute the odds ratio (OR) of disease of new med to placebo.     OR=_______.

    • 8 years ago
    • 10
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