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BioMed Research International
Volume 2017, Article ID 3896423, 7 pages
https://doi.org/10.1155/2017/3896423
Research Article

12-Item Pruritus Severity Scale: Development and Validation of New Itch Severity Questionnaire

1Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
2Department of Dermatology, University of Rzeszów, Rzeszów, Poland

Correspondence should be addressed to Adam Reich; lp.2og@silacidem_ida

Received 9 April 2017; Revised 15 August 2017; Accepted 23 August 2017; Published 2 October 2017

Academic Editor: Yunfeng Zhao

Copyright © 2017 Adam Reich et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction. A validated assessment of pruritus intensity is an important but still difficult clinical problem due to a subjective nature of this sensation. Objective. The aim of this study was the creation and validation of new itch severity questionnaire assessing pruritus intensity. Material and Methods. A total of 148 patients with pruritic dermatoses were asked to assess pruritus intensity using 12-Item Pruritus Severity Score (12-PSS) and Visual Analogue Scale (VAS). Patients were also asked to complete the Dermatology Life Quality Index (DLQI) and Hospitality Anxiety and Depression Scale (HADS). Test-retest comparison of 12-PSS was conducted in 102 subjects who completed the itch questionnaire twice with the 3- to 5-day interval. Results. We have created the 12-PSS assessing pruritus intensity (two questions), pruritus extent (one question) and duration (one question), influence of pruritus on concentration and patient psyche (four questions), and scratching as a response to pruritus stimuli (four questions). A maximum scoring was 22 points. The results showed strong consistency (Cronbach α coefficient 0.81). A significant correlation was observed with VAS (, ) and quality of life level according to DLQI (, ). Test-retest comparison in 102 subjects revealed a satisfactory reproducibility of achieved results (ICC = 0,72). Conclusions. The newly developed pruritus severity questionnaire may be used in daily clinical practice in the future.