Five-Factor Score (FFS-2011, systemic vasculitis prognosis)
Five-Factor Score, 2011 revision (0–5) for systemic necrotizing vasculitis: age > 65, cardiac, GI, and renal involvement each +1, plus absence of ENT manifestations +1.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age > 65 years
- Yes
- Cardiac insufficiency
- Yes
Result: FFS-2011 2/5 — about 40% 5-year mortality.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Mortality
- 5-year mortality ≈ 9% at FFS 0, 21% at FFS 1, and 40% at FFS ≥ 2.
What you enter
- Age > 65 years
- Cardiac insufficiency
- Gastrointestinal involvement
- Renal insufficiency (creatinine ≥ 150 µmol/L)
- Absence of ENT manifestations
How this is calculated
- Factors
- four poor-prognosis factors each +1 (age > 65, cardiac insufficiency, GI involvement, renal insufficiency) plus the favorable factor absence-of-ENT +1, total 0–5.
Guillevin L, Pagnoux C, Seror R, et al. The Five-Factor Score revisited: assessment of prognoses of systemic necrotizing vasculitides based on the French Vasculitis Study Group (FVSG) cohort. Medicine (Baltimore). 2011;90(1):19-27. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.