Inflammatory Myopathy (IIM) Disease Activity Assessment

Assesses inflammatory myopathy (DM/PM/IBM/ASyS) disease activity using MMT8 manual muscle testing, MDAAT, skin VAS, CK levels, and IIM-specific autoantibody-guided prognosis (anti-MDA5, anti-Jo-1).

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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

Assesses inflammatory myopathy (DM/PM/IBM/ASyS) disease activity using MMT8 manual muscle testing, MDAAT, skin VAS, CK levels, and IIM-specific autoantibody-guided prognosis (anti-MDA5, anti-Jo-1)

Each component has a specific meaning:

  • MMT8 manual muscle testing — The mmt8 manual muscle testing recorded for the scenario being assessed.
  • MDAAT — The mdaat recorded for the scenario being assessed.
  • Skin VAS — The skin vas recorded for the scenario being assessed.
  • CK levels — The ck levels recorded for the scenario being assessed.
  • IIM-specific autoantibody-guided prognosis (anti-MDA5 — The iim-specific autoantibody-guided prognosis (anti-mda5 recorded for the scenario being assessed.
  • Anti-Jo-1) — The anti-jo-1) recorded for the scenario being assessed.

Note: Interpret the iim activity score result against the thresholds and context described above.

How to Use

Enter the MMT8 manual muscle testing, MDAAT, skin VAS, CK levels, IIM-specific autoantibody-guided prognosis (anti-MDA5, anti-Jo-1) for the scenario you are assessing. Assesses inflammatory myopathy (DM/PM/IBM/ASyS) disease activity using MMT8 manual muscle testing, MDAAT, skin VAS, CK levels, and IIM-specific autoantibody-guided prognosis (anti-MDA5, anti-Jo-1). Use the iim activity score result to inform your calculation.

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Frequently Asked Questions