Fig. 1From: Neutrophil to lymphocyte ratio at diagnosis can estimate vasculitis activity and poor prognosis in patients with ANCA-associated vasculitis: a retrospective studyRelative risk of severe AAV based on BVAS. Patients having NLR ≥ 5.9 exhibited the higher frequency of severe AAV than those having NLR < 5.9 (47.2% vs. 29.0%, RR 2.189, P = 0.023). AAV; ANCA-associated vasculitis: ANCA: antineutrophil cytoplasmic antibody; BVAS: Birmingham vasculitis activity score; NLR: neutrophil to lymphocyte ratioBack to article page