[2] The SCORAD index was developed by the European Task Force on Atopic Dermatitis in 1993.
[3] The index was the most widely used disease-severity scale for atopic dermatitis between its development and 2010.
[4] To calculate the SCORAD index, the extent of disease is determined using the rule of nines to estimate percentage of the affected body surface area.
Disease intensity is then calculated based on six characteristics: erythema, edema, oozing/crusts, excoriations, lichenification, and dryness.
Subjective symptoms including sleep loss and pruritus are measured using a 10 cm visual analogue scale with a total maximum score of 20.