Hidradenitis Suppurativa Severity (IHS4) - Scientific Formula
Dermatology Equation
Standard Calibration Equation:
IHS4 = (1 × Inflammatory Nodules) + (2 × Abscesses) + (4 × Draining Tunnels)
Accuracy Bounds & Limits:
While mathematical calculators evaluate demographic models, extreme variance (hyperthyroidism, dialysis cases, muscular bodybuilders, pregnancy) can trigger output errors. Weight and clearance assessments must follow separate personalized titration grids.