Table 1.
Patient characteristics of the 'test set' comprising 342 serum samples.
| Diagnosis | n (%) | age | gender f/m |
|---|---|---|---|
| GPA | 59 (17.3) | 21 - 81 | 36/23 |
| EGPA | 40 (11.7) | 21 - 70 | 20/20 |
| MPA | 20 (5.8) | 17 - 80 | 13/7 |
| SLE | 40 (11.7) | 20 - 72 | 31/9 |
| RA | 30 (8.8) | 40 - 81 | 23/7 |
| RA and rheumatoid vasculitis | 10 (2.9) | 44 - 67 | 5/5 |
| Cryoglobulinaemic vasculitis | 10 (2.9) | 43 - 78 | 7/3 |
| Systemic sclerosis | 38 (11.1) | 35 - 84 | 27/11 |
| Infectious diseases | 51 (14.9) | 5 - 86 | 46/5 |
| Healthy controls | 44 (12.9) | 23 - 71 | 28/16 |
Patients with GPA consist of cases with generalized and localized GPA demonstrating inactive as well as active disease. Patients with EGPA cover cases with active and inactive disease. EGPA, eosinophilic granulomatosis with polyangiitis (Churg-Strauss Syndrome); GPA, granulomatosis with polyangiitis (Wegener's); f, female; m, male; MPA, microscopic polyangiitis; RA, rheumatoid arthritis; SLE, systemic lupus erythematosus.