Aspirin for prevention of cardiovascular events in a general population screened for a low ankle brachial index: a randomized controlled trial.

Fowkes, F Gerald R; Price, Jacqueline F; Stewart, Marlene C W; Butcher, Isabella; Leng, Gillian C; Pell, Alistair C H; Sandercock, Peter A G; Fox, Keith A A; Lowe, Gordon D O; Murray, Gordon D
JAMA : the journal of the American Medical Association; 2010 Mar 3;303(9):841-8. PMID: 20197530


A low ankle brachial index (ABI) indicates atherosclerosis and an increased risk of cardiovascular and cerebrovascular events. Screening for a low ABI can identify an asymptomatic higher risk group potentially amenable to preventive treatments.