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April 1970

PsoriasisA Measure of Severity

Author Affiliations

Hanover, NH

From the Dartmouth Medical School, Hanover, NH, Section of Dermatology, Hitchock Clinic (Dr. Baughman), and the Department of Psychiatry (Dr. Sobel).

Arch Dermatol. 1970;101(4):390-395. doi:10.1001/archderm.1970.04000040012004

A scale for the objective measurement of severity of psoriasis is presented for application to long-term studies of the course of the disease and possible related factors. A group of dermatologists and a group of hospitalized patients ranked a series of 50 features of psoriasis on a self-anchoring scale ranging from 1 to 7 with 1 as indicative of mildest possible psoriasis and 7 as indicative of worst possible psoriasis. A final scale of features with low variance was constructed. Differences between objective and subjective evaluation of severity are stressed.