Pemphigus Disease Area Index (PDAI)

Calculate PDAI for pemphigus vulgaris/foliaceus by scoring active lesions (0–120) and damage/post-inflammatory changes across skin and mucosal surfaces to guide immunosuppressive treatment.

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

Calculate PDAI for pemphigus vulgaris/foliaceus by scoring active lesions (0–120) and damage/post-inflammatory changes across skin and mucosal surfaces to guide immunosuppressive treatment

Each component has a specific meaning:

  • Skin — The skin recorded for the scenario being assessed.
  • Mucosal surfaces — The mucosal surfaces recorded for the scenario being assessed.

Note: Interpret the pemphigus pdai result against the thresholds and context described above.

How to Use

Enter the skin, mucosal surfaces for the scenario you are assessing. Calculate PDAI for pemphigus vulgaris/foliaceus by scoring active lesions (0–120) and damage/post-inflammatory changes across skin and mucosal surfaces to guide immunosuppressive treatment. Use the pemphigus pdai result to inform your calculation.

Frequently Asked Questions