According to a new study led by researchers at the University of Pittsburgh School of Medicine, only one out of more than 1, 900 people evaluated met the American Heart Association (AHA) definition of ideal cardiovascular health.

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Last March, following accusations by independent bloggers in Japan and Germany, the American Heart Association (AHA) issued an Expression of Concern about five papers published in AHA journals co-authored by the chief investigator of the Kyoto Heart Study, Hiroaki Matsubara, who was a prominent cardiologist and researcher at Kyoto Prefectural University in Japan.

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In a sign of just how complicated it will be, the official American Heart Association press release on the presentation today at the AHA meeting only stressed that rivaroxaban was comparable to warfarin, not superior.

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