Table 1.

Baseline patient characteristics (n = 31) of antineutrophil cytoplasmic antibodies (ANCA) associated vasculitis patients in remission at the time of endogenous thrombin generation (ETP) potential measurement.

Characteristicn
Age, yrs, ± SD51.4 ± 15.4
Male/female16/15
Diagnosis
  GPA (%)29 (93.5)
  MPA (%)1 (3.2)
  EGPA (%)1 (3.2)
ANCA subtype
  MPO-ANCA (%)7 (22.6)
  PR3-ANCA (%)24 (77.4)
Disease duration, yrs (range)6.6 (3.1–9.0)
Immunosuppressive medication
  None (%)8 (25.8)
  Prednisone with azathioprine (%)8 (25.8)
  Azathioprine alone (%)2 (6.4)
  MMF (%)2 (6.4)
  Prednisone with MMF (%)3 (9.7)
  Prednisone with methotrexate (%)5 (16.1)
  Prednisone alone (%)3 (9.7)
VTE before study (%)5 (16.1)
Anticoagulant use (%)4 (12.9)
C-reactive protein, mg/l, (range)3.9 (2.7–7.6)
D-dimers, ng/ml (range)291 (180–463)
BVAS0
Serum creatinine, μmol/l (range)84 (71–97)
Leukocyte counts, cells × 109/l (range)6.3 (5.4–7.9)
Platelet counts, cells × 109/l (range)274 (206–309)
IgG anti-CMV antibodies present (%)18 (58.1)
  • Median amount of prednisone use daily was 5 mg (range 2 mg to 17.5 mg). GPA: granulomatous polyangiitis; MPA: microscopic polyangiitis; EGPA: eosinophilic granulomatosis with polyangiitis; MPO: myeloperoxidase; PR3: proteinase-3; MMF: mycophenolate mofetil; VTE: venous thromboembolism; BVAS: Birmingham Vasculitis Activity Score; CMV: cytomegalovirus; HDL: high-density lipoprotein; LDL: low-density lipoprotein; Ig: immunoglobulin.