HRV (n=31) | RA+EAM (n=50) | RA− (n=44) | |
---|---|---|---|
HRV, histologically proven rheumatoid vasculitis and recent onset of extra-articular manifestations; RA+EAM, rheumatoid arthritis with recent onset of extra-articular manifestations, but without histological evidence of vasculitis; RA−, rheumatoid arthritis, without recent onset of extra-articular manifestations or a suspicion of vasculitis; RF, increased levels of serum rheumatoid factor, measured at any time during the disease course of RA. | |||
Age, years (range) | 70 (49–85) | 66 (38–85) | 65 (38–84) |
Female (No (%)) | 18 (58) | 29 (58) | 26 (59) |
RA disease duration, years (range) | 14 (1–52) | 13 (0–44) | 10 (0–33) |
Patients with (%) | |||
Nodules (previous onset) | 74 | 60 | 18 |
RF | 100 | 96 | 96 |
Joint erosions | 97 | 98 | 91 |
Arthritis activity (range) | |||
Swollen joint count | 8 (0–16) | 7 (0–15) | ND |
Painful joint count | 8 (0–24) | 8 (0–35) | ND |
Treatment (%) | |||
Corticosteroids | 32 | 28 | NA |
Methotrexate | 10 | 18 | NA |
Others | 49 | 42 | NA |
None | 16 | 8 | NA |
Vasculitis observed in (n) | |||
Muscle | 17/31 | 0/50 | ND |
Skin | 9/11 | 0/3 | ND |
Muscle and skin | 3/3 | ND | |
Sural nerve | 2/2 | 0/6 | ND |