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Validation of the Skindex-17 quality of life assessment instrument for a Brazilian population
Jorge, Marilia Formentini Scotton; Mourão, Ioana Bittencourt; Pollo, Camila Fernandes; Sousa, Ticiane Dionízio de; Meneguin, Silmara; Miot, Hélio Amante.
Affiliation
  • Jorge, Marilia Formentini Scotton; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
  • Mourão, Ioana Bittencourt; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
  • Pollo, Camila Fernandes; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
  • Sousa, Ticiane Dionízio de; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
  • Meneguin, Silmara; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
  • Miot, Hélio Amante; Universidade Estadual Paulista. Faculty of Medicine. Botucatu. BR
An. bras. dermatol ; An. bras. dermatol;96(1): 51-58, Jan.-Feb. 2021. tab, graf
Article in En | LILACS | ID: biblio-1152806
Responsible library: BR1.1
ABSTRACT
Abstract

Background:

Health-related quality of life assesses how diseases affect the daily life of people; there are several generic instruments for this assessment in dermatology. Skindex was created in 1996; it is a multidimensional instrument, aiming to encompass some psychological and social aspects not yet addressed by other questionnaires. Among its versions (Skindex-29, 16, and 17), Skindex-17 had not been validated in Brazil.

Objectives:

To validate Skindex-17 for use in Brazilians with dermatological diseases.

Methods:

This was a methodological, cross-sectional, and prospective study of 217 patients attended at the Dermatology Service Outpatient Clinic, Faculdade de Medicina de Botucatu - Universidade Estadual Paulista (Botucatu, SP, Brazil), from December 2017 to September 2019. The following were evaluated content validity, filling time, internal consistency, dimensional structure, concurrent validity (DLQI), temporal stability, and responsiveness.

Results:

The sample consisted of 71% women, mean age (SD) of 45 (16) years; phototypes II−IV accounted for 95% of the cases. Cronbach's alpha coefficients were 0.82 and 0.93 for the symptoms and psychosocial conditions, respectively. A high correlation was observed with the DLQI score symptoms (rho = 0.69) and psychosocial conditions (rho = 0.75). The instrument's two-dimensional structure was confirmed through confirmatory factor analysis. Temporal stability (ICC > 0.9) and score responsiveness (p ≤ 0.02) were verified. The instrument was shown to be feasible in clinical practice due to the content validation performed by professionals and patients, as well as the low time spent completing it (< 5 min). Study

limitations:

Single-center study, with patients exclusively from the public healthcare system.

Conclusions:

Skindex-17 was shown to be a valid and consistent instrument for assessing quality of life among patients with dermatological diseases, in Brazil. Its two-dimensional structure was confirmed.
Subject(s)
Key words

Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Quality of Life / Skin Diseases Type of study: Observational_studies / Prevalence_studies / Risk_factors_studies Aspects: Patient_preference Country/Region as subject: America do sul / Brasil Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2021 Document type: Article Affiliation country: Brazil Country of publication: Brazil

Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Quality of Life / Skin Diseases Type of study: Observational_studies / Prevalence_studies / Risk_factors_studies Aspects: Patient_preference Country/Region as subject: America do sul / Brasil Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2021 Document type: Article Affiliation country: Brazil Country of publication: Brazil