Birmingham Vasculitis
Activity Score (BVAS)

Why this page has no calculator

The BVAS form and its scoring rules are copyrighted by Oxford University Innovation Limited. Using the official tool requires a licence. The calculator previously on this site was not based on the current form, so we have removed it. We will not offer a BVAS calculator unless it is built on the current form under a licence.

What the BVAS measures

• Disease activity across nine organ-based systems, from general symptoms to nervous system involvement.
• Only manifestations attributed to active vasculitis are recorded. Features caused by earlier damage, medication, or other conditions are excluded.
• Each feature is recorded as new or worse (presented, recurred, or worsened within the previous 4 weeks), or persistent (present but not worse).
• Version 3 reduced the form from 66 items to 56 and uses a single persistent box for the whole form. It was validated in 313 patients with systemic vasculitis (Mukhtyar et al., Ann Rheum Dis 2009;68:1827-1832).

The BVAS measures activity, not organ damage. Irreversible damage is assessed separately with the Vasculitis Damage Index (VDI).

How to access the official tool

The BVAS and VDI are available to licence through Oxford University Innovation's Clinical Outcomes team. Licence applications are made through their platform. For licensing questions, contact healthoutcomes@innovation.ox.ac.uk.

The Luqmani Group offers case-based training for the BVAS and VDI, online or in person, to support valid use in studies. Contact bvasvdi@ndorms.ox.ac.uk.

Oxford University Innovation: BVAS and VDI information and licensing

Related

Prognosis in systemic necrotizing vasculitis: Five Factor Score. Vasculitis classification: GPA, MPA, EGPA.