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The SCORAD index : Total score

**How is it calculated ?**
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**A = SPREAD.../100
****B = INTENSITY.../18
****C = SUBJECTIVE SYMPTOMS.../20
****SCORAD calculation: A/5 + 7.B/2 + C**

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**How was it validated**

Based on 88 cases from 5 centers, criteria were weighted using the
mathematical model of main component analysis.

*It was thus determined that intensity represents around 60 %,
soread 20 % and subjective signs 20 % of the
total score.*

**How reproducible is it ?**

In the photo, the variation in intraindividual assessment is slight.

Thus, for two slides showing the same degree of severity, the probability
of inclusion in the same class is greater than 70 %.

**What is its distribution ?**

Two measurement systems were tested and corelated. The system with
the more normal distribution was chosen.

Next : The SCORAD index - How to use it ?