Table 1

Demographic and disease characteristics of 81 patients with recent onset of extra-articular manifestations and a suspicion of rheumatoid vasculitis

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)746018
    RF1009696
    Joint erosions979891
Arthritis activity (range)
    Swollen joint count8 (0–16)7 (0–15)ND
    Painful joint count8 (0–24)8 (0–35)ND
Treatment (%)
    Corticosteroids3228NA
    Methotrexate1018NA
    Others4942NA
    None168NA
Vasculitis observed in (n)
    Muscle17/310/50ND
    Skin9/110/3ND
    Muscle and skin3/3ND
    Sural nerve2/20/6ND