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The positive rate of ANCA in vasculitis.
| ANCA-associated vasculitis | MPO-ANCA | PR3-ANCA |
|---|---|---|
| GPA | 20% | 75% |
| MPA | 60% | 30% |
| EGPA | 30% | 5% |
| Renal limited vasculitis | 80% | 10% |
| Drug-induced vasculitis | 90% | 10% |
ANCA, antineutrophil cytoplasmic autoantibodies; EGPA, eosinophilic granulomatosis with polyangiitis; GPA, granulomatosis with polyangiitis; MPA, microscopic polyangiitis; MPO, myeloperoxidase; PR3, proteinase 3.
