Table 1.

Demographic data of 50 patients with ANCA-associated vasculitis interviewed for this study

Demographics	Oxford (n = 18)	Ottawa (n = 14)	Philadelphia (n = 17)	Total
Diagnosis
GPA	8	8	9	26
MPA	3	1	3	7
EGPA	7	6	5	18
Sex
Male	12	6	6	24
Female	6	9	11	27
Age
< 50	3	2	5	11
≥ 50	15	13	12	40
Diagnosis or flare
< 2 years	13	5	16	34
≥ 2 years	5	10	1	17
Organ involvement
Kidney	9	2	5	16
Lung	12	12	10	34
ENT	10	14	11	35
Neuro	4	1	6	12