By Andrew M. Seaman (Reuters Health) - More than nine million people may miss out on cholesterol-lowering drugs that prevent heart attacks and strokes if doctors choose one set of medical guidelines over another, according to a new study. "I would say we’re still searching for the perfect guidelines," said lead author Michael Pencina, of Duke University in Durham, North Carolina. The 2013 ACC/AHA guidelines recommend statins for people ages 40 to 75 with at least a 7.5 percent risk of having a heart attack or stroke in the next 10 years.



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