We commend O’Hare and colleagues1 on their recent article demonstrating an association of low ankle-brachial index (ABI) with a prospective rise in serum creatinine concentration in the Atherosclerosis Risk in Communities (ARIC) study. In a cross-sectional analysis of exactly the same data set, our research group also found a significant association of low ABI with kidney disease.2
Kshirsagar AV, Colindres RE. Systemic Atherosclerosis and Kidney Disease. Arch Intern Med. 2006;166(2):250. doi:https://doi.org/10.1001/archinte.166.2.250-a
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