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. It ranges from 0 to 72, with higher scores indicating more severe disease.

2. How Does the Calculator Work?

The calculator uses the EASI equation:

Where:

• Severity — 0-3 scale (0=none, 1=mild, 2=moderate, 3=severe) for erythema, induration/papulation, excoriation, and lichenification
• Area — 0-6 scale (0=0%, 1=1-9%, 2=10-29%, 3=30-49%, 4=50-69%, 5=70-89%, 6=90-100%)
• Multiplier — Region-specific (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4)

Explanation: The score is calculated by assessing four body regions separately, then combining them with appropriate weighting for each region's surface area.

3. Importance of EASI Score

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

4. Using the Calculator

Tips: For each body region, enter the average severity score (0-3) and the area score (0-6). The calculator automatically applies the appropriate regional multipliers.

5. Frequently Asked Questions (FAQ)

Q1: What do different EASI scores mean?
A: 0=clear, 0.1-1.0=almost clear, 1.1-7.0=mild, 7.1-21.0=moderate, 21.1-50.0=severe, >50.0=very severe.

Q2: How often should EASI be measured?
A: Typically at baseline and every 4-12 weeks during treatment, depending on the clinical scenario.

Q3: What's the difference between EASI and SCORAD?
A: EASI focuses on signs only, while SCORAD includes symptoms (itch, sleep loss) and is more subjective.

Q4: Can EASI be used for children?
A: Yes, though area assessment may need adjustment for body proportions in very young children.

Q5: What is a clinically meaningful improvement?
A: Typically a 50-75% reduction from baseline is considered clinically significant.