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V Aboyans
Dr V Aboyans, University of California-San Diego, La Jolla, CA, USA; vaboyans@ucsd.edu
STUDY QUESTION
Is subclavian stenosis associated with increased all-cause and cardiovascular (CV) mortality?
STUDY DESIGN
Design:
cohort study including 3 cohorts.
Setting:
2 vascular laboratories in San Diego, California; 3 medical centres (2 vascular laboratories, 1 general medicine clinic) in Chicago, Illinois; and a community-dwelling cohort in southern California, USA.
Participants:
1778 participants (mean age 69 y, 62% men), two-thirds of whom received lower extremity arterial testing. Exclusion criteria included being bound to a wheelchair; living in a nursing home; and having dementia, amputations, or an ankle-brachial index >1.50 (in the second cohort).
Risk factors:
subclavian stenosis (presence of brachial systolic pressure difference ⩾15 …
Footnotes
Source of funding: National Institutes of Health; National Heart, Lung and Blood Institute; National Center for Research Resources; American Heart Association.