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A cross-sectional study of the Birmingham Vasculitis Activity Score version 3 in systemic vasculitis

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Ravi Suppiah
  • Chetan Mukhtyar
  • Oliver Flossmann
  • Federico Alberici
  • Baslund, Bo
  • Rajbir Batra
  • Denise Brown
  • Julia Holle
  • Zdenka Hruskova
  • David R W Jayne
  • Andrew Judge
  • Mark A Little
  • Alessandra Palmisano
  • Coen Stegeman
  • Vladimir Tesar
  • Augusto Vaglio
  • Kerstin Westman
  • Raashid Luqmani
Objective. Assessment of disease activity in vasculitis can be achieved using the BVAS, a clinical checklist of relevant symptoms, signs and features of active disease. The aim of this study was to revalidate the BVAS version 3 (BVAS v. 3) in a cohort of patients with systemic vasculitis. Methods. A total of 238 patients with vasculitis from seven countries in Europe were evaluated at a single time point. Spearman's correlation coefficients were calculated between BVAS v. 3 scores, vasculitis activity index (VAI), physician's global assessment (PGA), the physician's treatment decision, CRP and the vasculitis damage index (VDI) to demonstrate that the BVAS v. 3 measures disease activity. Results. WG (63%), Churg-Strauss syndrome (9%) and microscopic polyangiitis (9%) were the most common diagnoses. The BVAS v. 3 showed convergent validity with the VAI [¿¿=¿0.82 (95% CI 0.77, 0.85)], PGA [¿¿=¿0.85 (95% CI 0.81, 0.88)] and the physician's treatment decision [¿¿=¿0.54 (95% CI 0.44, 0.62)]. There was little or no correlation between BVAS v. 3 and the CRP level [¿¿=¿0.18 (95% CI 0.05, 0.30)] or with the VDI [¿¿=¿-0.10 (95% CI 0.22, 0.03)]. The inter-observer reliability was very high with an intra-class correlation coefficient (ICC) of 0.996 (95% CI 0.990, 0.998) for the total BVAS v. 3 score. Conclusion. The BVAS v. 3 has been evaluated in a large cohort of patients with vasculitis and the important properties of the tool revalidated. This study increases the utility of the BVAS v. 3 in different populations of patients with systemic vasculitis.
OriginalsprogEngelsk
TidsskriftRheumatology
Vol/bind50
Udgave nummer5
Sider (fra-til)899-905
ISSN1462-0324
DOI
StatusUdgivet - 2011

ID: 34078299