Vasculitis Damage Index (VDI)

Calculate the Vasculitis Damage Index (VDI) for ANCA-associated and other systemic vasculitides. Measures cumulative irreversible damage across 11 organ systems independent of current disease activity.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate the Vasculitis Damage Index (VDI) for ANCA-associated and other systemic vasculitides. Measures cumulative irreversible damage across 11 organ systems independent of current disease activity

Each component has a specific meaning:

  • 11 organ systems independent of current disease activity — The 11 organ systems independent of current disease activity recorded for the scenario being assessed.

Note: Interpret the vasculitis damage index result against the thresholds and context described above.

How to Use

Enter the 11 organ systems independent of current disease activity for the scenario you are assessing. Calculate the Vasculitis Damage Index (VDI) for ANCA-associated and other systemic vasculitides. Measures cumulative irreversible damage across 11 organ systems independent of current disease activity. Use the vasculitis damage index result to inform your calculation.

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Frequently Asked Questions