MSFinals-0433

A study investigated the effectiveness of a new statin therapy in preventing ischaemic heart disease in a diabetic population. Over a period of five years, 1000 patients were randomly assigned to receive the new therapy and 1000 were given a placebo. The placebo group experienced 150 myocardial infarctions (MIs), while the group treated with the new statin had 100 infarctions. What is the yearly percentage of MIs in the diabetic population who received the placebo?