Cross cultural adaptation of the Injection Drug User Quality Of Life Scale (IDUQOL) in Spanish drug dependent population, with or without injectable consumption: Drug User Quality of Life Scale-Spanish (DUQOL-Spanish)

Morales-Manrique, C.C.; Valderrama‐Zurián, Juan Carlos; Castellano-Gómez, Miguel; Benavent, Rafael Aleixandre; Palepu, Anita

doi:10.1016/j.addbeh.2006.12.006

Cited by 22 publications

(24 citation statements)

References 13 publications

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“…This makes them a likely instrument for studying efficacy and effectiveness, although not for comparing with other samples of subjects. In the area of drug addiction, the specialized literature reviewed shows that at present there is one specific instrument: Injection Drug User Quality of Life -IDUQOL [15][16][17] .…”

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confidence: 99%

Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

2009

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A test has recently been designed for the measurement of health-related quality of life in drug abusers (Health-Related Quality of Life for Drug Abusers Test – HRQOLDA Test) based on the bi-axial concept of addiction. The aim of this work is to find out the metric properties of the test by applying the polytomous Rasch Rating Scale Model (RSM). The HRQOLDA Test was given to a sample of 358 drug abusers who began treatment in a Therapeutic Community. The Rating Scale Model (RSM) and the WINSTEPS programme were used for the analysis of its metric properties. The results shown here are an overall fit of data to the model. The items are adequately distributed over the HRQOL continuum. The response categories appear to be in order except for the category ‘a little’. The test region which measures most accurately, and is most informative, is in the middle of the continuum. The test properties studied confirm the adequacy of the RSM for accurate measurement of HRQOL in drug abusers, providing a test for measuring this specific construct in this population.

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Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

2009

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“…Se han encontrado resultados muy similares a los obtenidos en los estudios de validación inicial con población drogodependiente del Canadá 20-26 y a un reciente estudio de adaptación realizado por el grupo de Morales-Manrique 52 . En todos los estudios realizados se confirma la unidimensionalidad de la escala a través de múltiples procedimientos indicando una muy adecuada validez de constructo y la idoneidad para obtener un indicador sumario del instrumento.…”

Section: Discussionunclassified

“…No obstante, el IDUQoL presenta resultados que limitan su capacidad discriminante, al menos para satisfacer la especificidad del grupo para el que fue creada 20,21 , el de inyectores de drogas, pero alternativamente sí podría ser planteada como una escala específica para el colectivo de consumidores de drogas, pudiéndose denominar como 'escala de calidad de vida para usuarios de drogas' tal y como plantea el grupo de Morales-Manrique 52 .…”

Section: Discussionunclassified

“…Quizá la limitación más importante se halla en el tamaño de la muestra (n=100), siendo conveniente nuevos estudios que permitan incrementar el tamaño de efectivos. No obstante, la convergencia de resultados del presente estudio con los obtenidos en el realizado en Valencia (n= 169) 52 , son prueba de su consistencia y reproductibilidad. Asimismo, sería conveniente diversificar, por un lado, las tipologías de sujetos participantes en función de la droga de consumo, y por otro, el uso del IDUQoL en momentos temporales pre-post como variable de resultado, en aras a evaluar de forma más efectiva, respectivamente, la validez discriminante y sensibilidad al cambio del instrumento.…”

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Escala de Calidad de Vida en Usuarios de Drogas Inyectadas (IDUQoL): Valoración psicométrica de la versión española

Castillo¹

2008

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RESUMENAntecedentes: La valoración de la calidad de vida se ha convertido en el área de la investigación clínica en uno de los más utilizados indicadores de resultados. Para ello, se precisa de instrumentos adaptados y validados al contexto donde han de utilizarse. Objetivo: Analizar las características psicométri-cas del IDUQoL (Injection Drug User Quality of Life Scale) en su adaptación a población española. Método: Participan en el estudio 100 personas diagnosticadas de adicción a opiáceos incluidas en un programa de mantenimiento con metadona, quienes responden al IDUQoL -en su versión de 21 dominiosy otros dos instrumentos de calidad de vida -el SF-36 y EQ-5D-. Resultados: Se obtienen datos de fiabilidad óptimos (alpha de Cronbach de 0,92 y coeficiente de correlación Intraclase para el test-retest de 0,79). Análisis factoriales exploratorios y confirmatorios y el análisis de la matriz de correlaciones semi-parciales concluyen la unidimensionalidad del constructo con una varianza explicada del 43,8% e índices de ajuste adecuados (GFI= 0,92; CFI= 0,97; RMSEA= 0,044). Asimismo, se obtienen datos de validez convergente y de criterio muy adecuados (coeficientes de correlación con el SF-36 y EQ-5D entre 0,34 y 0,61, y con otras variables criterio entre 0,23 y 0,39; p<0,05), si bien el análisis de la validez discriminante no es del todo concluyente. Conclusiones: Los resultados obtenidos presentan el IDUQoL como un instrumento específico de calidad de vida en el ámbito de los trastornos adictivos con adecuadas caracterís-ticas en su adaptación al español. 281 ABSTRACT Background:The assessment of quality of life has become one of the priority indicators of outcomes in the field of clinical research. Therefore, it is necessary to use instruments adapted to and validated for the context in which they are to be used. Purpose: To assess the psychometric properties of the IDUQoL (Injection Drug User Quality of Life Scale) in its Spanish adaptation. Method: Participants were 100 persons with a diagnosis of opiate addiction who were on a methadone maintenance programme. They responded to the IDUQoL -in its 21-domain version-and two other quality of life instruments (the SF-36 and the EQ-5D). Results: Good reliability data are obtained (Cronbach's alpha of 0.92 and Intraclass Correlation Coefficient for the test-retest of 0.79). Exploratory and confirmatory factor analyses and semi-partial correlations analysis confirm the unidimensionality of the construct, with explained variance of 43.8% and adequate fit indices (GFI = 0.92; CFI = 0.97; RMSEA = 0.044). Convergent and criterion-related validity were also quite adequate (correlation coefficients with the SF-36 and EQ-5D were situated between 0.34 and 0.61, and with other criterion variables between 0.23 and 0.39; p <0.05), even though the discriminant validity analysis is not completely conclusive. Conclusion: The findings from this study provide evidence to support the use of the IDUQoL as a specific quality of life instrument in the addictive disorders context, and co...

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“…A recent generation of assessment tools is currently focusing on areas specifically related to substance use. In contrast to general QoL measures, which are structured around domains of similar importance, QoL tools specifically designed for substance use measurement allow for a specific selection of life areas that are most salient for substance users [19]. Such tools include the Injection Drug User QoL Scale (IDUQoL), an instrument utilized in Canada that evaluates changes of QoL in injection drug users, and the Medical Outcome Study-HIV Health Survey (MOS-HIV), used to assess substance use and QoL among patients infected with HIV [19,20].…”

Section: Introductionmentioning

confidence: 99%

Validation of the English Version of the Health-Related Quality of Life for Drug Abusers (HRQoLDA) Test

Zúbaran¹,

Sud²,

Emerson³

et al. 2012

Eur Addict Res

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Background: The Health-Related Quality of Life for Drug Abusers (HRQoLDA) test was designed to specifically evaluate quality of life among substance users. In this study, the validity and reliability of the English version of the HRQoLDA test are reported for the first time. Methods: A sample of 121 participants from inpatient and outpatient treatment facilities completed the HRQoLDA test. Results: The mean HRQoLDA score was 45.9 (SD = 16.9), while the overall Cronbach’s alpha coefficient was 0.905. The factorial analysis of the HRQoLDA test revealed a unidimensional structure. Convergent validity analyses demonstrated significant correlations between the HRQoLDA test scores and the scores of the World Health Organization Quality of Life Assessment-Bref Questionnaire in different dimensions. Conclusion: The results revealed that the HRQoLDA was successfully adapted to English. The HRQoLDA is a reliable research instrument for evaluating quality of life of substance users.

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Cross cultural adaptation of the Injection Drug User Quality Of Life Scale (IDUQOL) in Spanish drug dependent population, with or without injectable consumption: Drug User Quality of Life Scale-Spanish (DUQOL-Spanish)

Cited by 22 publications

References 13 publications

Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

Escala de Calidad de Vida en Usuarios de Drogas Inyectadas (IDUQoL): Valoración psicométrica de la versión española

Validation of the English Version of the Health-Related Quality of Life for Drug Abusers (HRQoLDA) Test

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