Prevalence of low ankle-brachial index, elevated plasma fibrinogen and CRP across Framingham risk categories: Data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004

Abnormal ABI, elevate fibrinogen and CRP are highly prevalent among individuals otherwise at low-intermediate risk. If any or all of them are shown to improve predictive ability of FRS for primary prevention, it would have a significant public health impact.