Clinical features

Prevalence (%)

Asthma

91-100

Ear, noise, and throat involvement

48-75

Neuropathy

55-72

Pulmonary involvement

65-91

Cutaneous involvement

40-52

Renal involvement

27

Cardiac involvement

27-35

Gastrointestinal involvement

23-32

Central nervous system involvement

5-9

ANCA positivity

38