Epidemiological patterns and in-hospital mortality in ANCA-associated vasculitis: Insights from Spain's National Health Data (2016-2022)

anca-associated vasculitis; eosinophilic granulomatosis with polyangiitis; epidemiology; granulomatosis with polyangiitis; microscopic polyangiitis; mortality, anca-associated vasculitis, eosinophilic granulomatosis with polyangiitis, epidemiology, granulomatosis with polyangiitis, microscopic polyangiitis, mortality, hospitalization