Table 1.

Baseline characteristics of patients diagnosed previously with ANCA‐associated vasculitis (AAV) at the time of sampling.

	Cohort n = 73
Men/women	42/31
Mean age (years) (s.d.)	62·41 (15·88)
GPA/MPA* diagnosis	61/12
Mean disease duration (years) (range)	6·96 (0–21·3)
Active disease (%)	30
Mean prednisone dose (mg) (range)	15·2 (0–80)
Other immune suppressive therapy (%)†	63

^*Granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA); s.d. = standard deviation.

^†Other immune suppressive therapy besides prednisone were: methotrexate, mycophenolate mofetil, azathioprine, leflunomide, chlorambucil, and rituximab.