Demographic characteristics of 807 patients with vasculitis

Disease category	Percent with disorder	Mean age at disease onset	Percent female
Polyarteritis nodosa	15	48	38
Eosinophilic granulomatosis with polyangiitis (Churg-Strauss)	3	50	37
Granulomatosis with polyangiitis (Wegener's)	10	45	37
Hypersensitivity vasculitis	12	47	54
Henoch-Schonlein purpura (IgA vasculitis)	10	17	46
Giant cell arteritis	26	69	75
Takayasu arteritis	8	26	86
Other vasculitis, type unspecified	16	44	55

Data from: Hunder GG, Arend WP, Bloch DA, et al. Arthritis Rheum 1990; 33:1065.

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