Stiff Person Syndrome Severity and Anti-GAD65 Response

Assesses stiff person syndrome severity using STIFF scale, anti-GAD65 antibody titer, co-existing type 1 DM and cerebellar ataxia features, and baclofen/diazepam dosing adequacy for muscle rigidity control.

Weight
Height
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 stiff person syndrome severity using STIFF scale, anti-GAD65 antibody titer, co-existing type 1 DM and cerebellar ataxia features, and baclofen/diazepam dosing adequacy for muscle rigidity control

Each component has a specific meaning:

  • STIFF scale — The stiff scale recorded for the scenario being assessed.
  • Anti-GAD65 antibody titer — The anti-gad65 antibody titer recorded for the scenario being assessed.
  • Co-existing type 1 DM — The co-existing type 1 dm recorded for the scenario being assessed.
  • Cerebellar ataxia features — The cerebellar ataxia features recorded for the scenario being assessed.
  • Baclofen/diazepam dosing adequacy — The baclofen/diazepam dosing adequacy recorded for the scenario being assessed.

Note: Interpret the sps severity score result against the thresholds and context described above.

How to Use

Enter the STIFF scale, anti-GAD65 antibody titer, co-existing type 1 DM, cerebellar ataxia features, baclofen/diazepam dosing adequacy for the scenario you are assessing. Assesses stiff person syndrome severity using STIFF scale, anti-GAD65 antibody titer, co-existing type 1 DM and cerebellar ataxia features, and baclofen/diazepam dosing adequacy for muscle rigidity control. Use the sps severity score result to inform your calculation.

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Frequently Asked Questions