The Physicians’ Health Study was a randomized, double-blind, placebo-controlled trial de...

The Physicians’ Health Study was a randomized, double-blind, placebo-controlled trial designed to determine whether low-dose aspirin (325 mg every other day) decreases cardiovascular mortality. The experiment assigned 11,037 physicians at random to receive aspirin, and 11,034 to receive a placebo.

a. The following table shows the incidence of cardiovascular events. What would you conclude about the effects of aspirin?

b. The following tables details cardiovascular mortality. What would you conclude about the effects of aspirin?