Fiabilidad y validez de constructo de la versión colombiana del instrumento de calidad de vida Skindex-29© en Medellín, Colombia

Abstract

Introducción: la adaptación cultural de los instrumentos de calidad de vida y su evaluación psicométrica se deben hacer de forma rigurosa y estandarizada.Objetivo: evaluar la fiabilidad y la validez de constructo de la versión colombiana del instrumento Skindex-29©.Métodos: se incluyeron pacientes con enfermedades cutáneas inflamatorias o generalizadas; con enfermedades no inflamatorias o localizadas, e individuos sanos y se determinó la fiabilidad intraobservador e interobservador.Resultados: se encuestaron 265 individuos. El coeficiente alfa de Cronbach fue de 0,957 para el instrumento total. Los coeficientes de correlación intraclase de la consistencia intraobservador e interobservador fueron superiores al 0,9. Los pacientes con enfermedades dermatológicas generalizadas y con dermatosis inflamatorias tuvieron puntuaciones más altas que las de aquellos con lesiones cutáneas no inflamatorias o aisladas.Conclusiones: los resultados corroboran la validez de constructo del instrumento estudiado. En el futuro es necesario evaluar otras propiedades psicométricas del mismo tales como su validez de contenido y de criterio y su sensibilidad al cambio. Objective: This study assessed the reliability and construct validity of the Colombian version of the Skindex-29 instrument.Methods: Patients with inflammatory or generalized skin diseases and with non-inflammatory or localized diseases, and healthy individuals were included. We determined the intra-and inter-observer reliability.Results: We surveyed 265 individuals. Cronbach's alpha was 0.957 for the total instrument. The intraclass correlation coefficients for intra-observer and inter-observer consistency were higher than 0.9. Patients with generalized or inflammatory diseases had higher scores than those with non-inflammatory or isolated lesions. Conclusions:The results support the construct validity of the studied instrument. In the future, it is necessary to evaluate other psychometric properties such as its content and criteria validity, and its sensitivity to change.

Construct validity and responsiveness of the Colombian version of Skindex‐29

“…The Skindex‐29 questionnaire is one of the most recognized and carefully validated instruments that measures QoL in patients with dermatological diseases . Skindex‐29 was adapted for Colombia from the Spanish version (intended for Spain) in 2011, and its reliability has been proven recently in another study . This study provides additional knowledge regarding the psychometric properties of this instrument, and it shows the validity of this questionnaire in a different cultural setting.…”

“…The instrument used was Skindex‐29‐Colombia, which is an adapted version of the Spanish instrument that proved to be reliable . Sociodemographic features included sex, age, diagnosed skin disease and duration of disease.…”

“…Ultimately, it only required translation and back‐translation of four items, as 25 of the 29 items were understood by the patients, while four of them were not comprehended at all. In another study we performed, the Skindex‐29‐Colombia has shown reliability (Cronbach α > 0·93 in intra‐ and interobserver consistency) and some construct validity (patients with generalized or inflammatory diseases had higher scores than those with noninflammatory or isolated lesions) . As construct validity confirmation of this adapted version from Colombia is needed, the aim of the current study was to assess the construct and convergent–discriminant validity of the Colombian instrument, and its responsiveness and sensitivity to change.…”

The Unmet Needs in Atopic Dermatitis Control in Latin America: A Multidisciplinary Expert Perspective

“…Despite recent efforts to validate certain AD control scales in Colombia [78], CROMs and PROMs largely lack validation for use in LA, and more data are needed. Linguistic variations of Spanish and diverse cultural contexts in LA require specific validation to ensure accurate transcultural application.…”

Caracterización clínica, sociodemográfica y determinación del impacto en la calidad de vida de pacientes con dermatitis atópica de la ciudad de Medellín y su área metropolitana

“…Se sabe que la DA provoca una alteración tanto desde el punto de vista clínico como en la calidad de vida del paciente y de su familia y para esto se han diseñado diferentes escalas que permiten evidenciar tal impacto (15,19).…”