RT Journal Article SR Electronic T1 The Incidence of Arterial and Venous Thrombosis in Antineutrophil Cytoplasmic Antibody–associated Vasculitis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.181351 DO 10.3899/jrheum.181351 A1 Alvise Berti A1 Eric L. Matteson A1 Cynthia S. Crowson A1 Ulrich Specks A1 Divi Cornec YR 2019 UL http://www.jrheum.org/content/early/2019/06/24/jrheum.181351.abstract AB We read with interest in The Journal of Rheumatology the article by Kang, et al, “High Incidence of Arterial and Venous Thrombosis in Antineutrophil Cytoplasmic Antibody-associated Vasculitis,”1 which reported a dramatically high incidence of arterial (ATE) and venous thrombosis events (VTE) in a hospital-based cohort of patients with antineutrophil cytoplasmic antibody–associated vasculitis (AAV). The study generally supports the previously reported increased risk of ATE and VTE in patients affected by AAV2–8, but has a number of inaccuracies and methodological issues that inflate the incidence rates of ATE and VTE.