1. What is the EASI Score?

The EASI (Eczema Area and Severity Index) is a validated scoring system that measures the severity and extent of atopic dermatitis (eczema). It evaluates four body regions for erythema, induration/papulation, excoriation, and lichenification.

2. How Does the Calculator Work?

The calculator uses the EASI equation:

Where:

• Severity — 0-3 scale for each sign (erythema, thickness, scratching, lichenification)
• Area — 0-6 scale for percentage of region affected
• Multiplier — Weighting factor for each body region (head 0.1, upper limbs 0.2, trunk 0.3, lower limbs 0.4)

Explanation: The score ranges from 0 to 72, with higher scores indicating more severe eczema.

3. Importance of EASI Score

Details: The EASI score is widely used in clinical trials and practice to assess eczema severity, monitor treatment response, and guide therapeutic decisions.

4. Using the Calculator

Tips: For each body region, enter the average severity (0-3) and area score (0-6). The calculator will compute the total EASI score.

5. Frequently Asked Questions (FAQ)

Q1: How is severity assessed?
A: Each sign (redness, thickness, scratching, lichenification) is scored 0-3, then averaged for the region.

Q2: What do area scores represent?
A: 0=0%, 1=1-9%, 2=10-29%, 3=30-49%, 4=50-69%, 5=70-89%, 6=90-100% of region affected.

Q3: What is a normal EASI score?
A: 0 indicates clear skin. 1-7=mild, 8-21=moderate, 22-72=severe eczema.

Q4: How often should EASI be measured?
A: Typically at each visit when monitoring treatment response in clinical practice or trials.

Q5: Are there limitations to EASI?
A: It doesn't capture subjective symptoms like itch or sleep loss. SCORAD may be better for comprehensive assessment.