TABLE 1.

The population-based studies reporting the prevalence of peripheral arterial disease (PAD) and borderline PAD

Study	Participants	Prevalence of PAD (definition)	Prevalence of borderline PAD (definition)
Framingham Offspring Study (1)	n=3313; ≥40 years	3.60% (ABI <0.9)	7.10% (ABI 0.9–1.0)
NHANES (2) 1999–2002	n=4895; ≥40 years	5.00% (ABI <0.90)	8.70% (ABI 0.90–0.99)
MESA (3)	n=6570; 45–84 years; free of CVD	3.70% (ABI <0.90)	7.60% (ABI 0.90–0.99)

ABI Ankle-brachial index; CVD Cardiovascular disease; MESA Multi-Ethnic Study of Atherosclerosis; NHANES National Health and Nutrition Examination Survey