Development and Initial Psychometric Properties of Two Itch-Related Measures: Scratch Intensity and Impact, Sleep-Related Itch and Scratch

Self-report measures are needed to better understand the relationships among sleep, itching, scratching, and chronic itch conditions and their associations with disease severity, quality of life, health, and functioning. Two scales related to sleep and/or scratch were recently developed and assessed in 137 patients with chronic itch and atopic dermatitis or psoriasis. The Scratch Intensity and Impact Scale consisted of two factors (Scratching Intensity and Impact of Scratching on Quality of Life) that accounted for 64.59% of the variance with a total of 13 items, an overall Cronbach ’s alphas of 0.93, and test-retest reliability of 0.66.
Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Tags: Original Article Source Type: research