Fig. 4From: The frequency of ANCA-associated vasculitis in a national database of hospitalized patients in ChinaEthnic distribution of anti-neutrophil cytoplasmic autoantibody associated vasculitis (AAV) in the Chinese population. The Dong, Zhuang and Li ethnic minorities had the highest frequencies of AAV, with a frequency of 0.67‰, 0.61‰ and 0.42‰, respectively. HQMS, Hospital Quality Monitoring SystemBack to article page