Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study.

Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Research Abstract Details 

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Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Abstract Text:

Keattiyoat Wattanakit,Aaron R Folsom,Daniel A Duprez,Beth D Weatherley,Alan T Hirsch,

BACKGROUND: The clinical significance of a high ankle-brachial index (ABI), defined by the associated risk factor burden and ischemic risk, is largely unknown. METHODS: Using data from the Atherosclerosis Risk in Communities Study, we categorized 14,777 participants into normal (ABI between 0.9 and 1.3) and high ABI groups (ABI>1.3, >1.4, and >1.5) and compared the risk factor profile and CVD event rates of the normal ABI group to each high ABI group. RESULTS: The prevalence of high ABI was 5.5% for ABI>1.3, 1.2% for ABI>1.4, and 0.37% for ABI>1.5. Compared with participants with a normal ABI, those with ABI>1.3 had a lower prevalence of hypertension and current smoking. The ABI>1.3 group had a greater mean body mass index, but was characterized by fewer pack years of smoking and lower systolic and diastolic blood pressures than the normal ABI group. The prevalence of diabetes, left ventricular hypertrophy, claudication, and coronary heart disease and mean values of fibrinogen, factor VIII activity, von Willebrand factor, lipoprotein (a), and carotid and popliteal intimal-medial thickness were similar between the two ABI groups. The risk factor profiles of the ABI>1.4 and >1.5 groups were also not statistically significantly different from that of the normal ABI group. Over a mean follow-up time of 12.2 years, the age, sex, and race-adjusted CVD event rates per 1000 person years were 8.1 in the normal ABI group, 7.6 in the ABI>1.3 group, 7.6 in the ABI>1.4 group, and 7.4 in the ABI>1.5 group. The CVD event rates of the high ABI groups were similar to that of the normal ABI group. CONCLUSION: Individuals with a high ABI are not characterized by a more adverse atherosclerosis risk factor profile and do not suffer greater CVD event rates than those with a normal ABI.

Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Publishing Authors By Initials

K Wattanakit,AR Folsom,DA Duprez,BD Weatherley,AT Hirsch,

For similar geographic locations: americas: north america: united states research abstracts see: geographic locations: americas: north america: united states research

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Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Atherosclerosis

VOLUME: 190

Page Numbers: 459-64

Journal Abbreviation: Atherosclerosis

ISSN: 0021-9150

DAY: 29

MONTH: 03

YEAR: 2006

Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Information

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LANGUAGE: eng

NlmUniqueID: 242543

Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study. Keywords Mesh Terms:

KEYWORDS: United States

MESH TERMS: epidemiology

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Grant and Affiliation Information for Clinical significance of a high ankle-brachial index: insights from the Atherosclerosis Risk in Communities (ARIC) Study.

AFFILIATION: Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN 55454, USA.

Country: Ireland

AGENCY: United States NHLBI

GRANT: T32-HL-07779

ACRONYM: HL

MEDLINETA: Atherosclerosis

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