1. What is the EASI Score?

The Eczema Area and Severity Index (EASI) is a standardized tool for measuring the extent (area) and severity of atopic eczema (dermatitis). It provides a composite score ranging 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 — Rated 0-3 for erythema, induration/papulation, excoriation, and lichenification (average score used)
• Area — Percentage of region affected (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 weighting factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4)

3. Importance of EASI Calculation

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, assess the average severity (0-3) and area score (0-6). The calculator automatically applies the region-specific 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, >50.1=very severe.

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

Q3: What are the limitations of EASI?
A: Doesn't capture subjective symptoms (itch, sleep loss), requires training for accurate assessment, and may underestimate small areas of severe eczema.

Q4: How does EASI compare to SCORAD?
A: EASI focuses on signs only (no symptoms), is more reproducible, and better for clinical trials. SCORAD includes symptoms but is more complex.

Q5: Can EASI be used in children?
A: Yes, though area assessment may need adjustment for body proportions in very young children.