Summary of clinical findings in patients with MPA and classic PAN
| MPA (n = 10) | Classic PAN (n = 15) | |
|---|---|---|
| (%) | (%) | |
| Sex (F/M) | 6/4 | 8/7 |
| Median age (y) (range) | 12 (8–17) | 9.5 (5–14) |
| Constitutional manifestations | 10 (100) | 13 (86.7) |
| Myalgia1-150 | 2 (20) | 12 (80) |
| Skin lesions | 7 (70) | 8 (53.3) |
| Joint disease | 6/9 (66.7) | 7 (46.7) |
| Gastrointestinal symptoms | 2/9 (22.2) | 2 (13.3) |
| Neurological findings | 2/9 (22.2) | 5 (33.3) |
| Pulmonary findings | 3 (30) | 0 |
| Hypertension | 5 (50) | 8 (53) |
| Haematuria | 5 (50) | 3 (20) |
| Proteinuria1-150 | 7 (70) | 3 (20) |
| Renal failure (Cr Cl < %50)1-150 | 6 (60) | 0 |
| End stage renal failure | 4 (40) | — |
| Relapses | 5 (50) | 2 (20) |
↵1-150 p < 0.05.