“Statins are a class of drugs often prescribed by doctors to help lower cholesterol levels in the blood. By lowering the levels, they help prevent heart attacks and stroke. Studies show that, in certain people, statins reduce the risk of heart attack, stroke, and even death from heart disease by about 25% to 35%. Studies also show that statins can reduce the chances of recurrent strokes or heart attacks by about 40%.”
http://www.webmd.com/cholesterol-management/side-effects-of-statin-drugs
I have looked at those stats and the real numbers are something else. In reality you are talking about a half to one point and yet they make they make it look like a 50% reduction somehow.