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

Zúbaran, Carlos; Sud, Rishi; Emerson, Jonathan; Zolfaghari, Elham; Foresti, Katia; Lozano, Óscar

doi:10.1159/000337213

Cited by 8 publications

(10 citation statements)

References 46 publications

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“…In recent years, specific tests have been developed to assess quality of life in the context of substance use, including the Injection Drug Users Quality of Life Scale (IDUQOL) [ 6 , 7 ]; the Quality of Life Scale for Drug Addicts (QOL-DA) [ 8 ]; and the Health-Related Quality of Life for Drug Abusers test (HRQOLDA) [ 9 , 10 ]. By contrast, the Drug User Quality of Life Scale is a specific instrument, which was originally developed to assess the quality of life of intravenous substance users [ 6 , 7 ]; a later version has been adapted for substance users irrespective of their methods of self-administration (DUQOL) [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…The HRQoLDA [ 10 ] or TECVASP test as originally conceived in the Spanish language [ 9 ], as a quality of life instrument designed to specifically assess the quality of life of substance users. This specific instrument was developed to assist clinicians and researchers to determine to what extent and intensity substance use and drug addiction affect Quality of Life (QoL).…”

Section: Introductionmentioning

confidence: 99%

“…The HRQoLDA is a brief assessment tool, which measures aspects related to the physical, psychological and social consequences of substance use. The HRQoLDA is a reliable instrument for evaluating quality of life of substance users, which has demonstrated a significant Cronbach's alpha coefficient of 0.905, with sound evidence of convergent validity [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Comparison and concordance of health-related quality of life tests among substance users

Rojas

Lozano

Foresti

et al. 2015

Health Qual Life Outcomes

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BackgroundIn the field of drug and alcohol abuse, health-related quality of life (HRQoL) has been used as an important clinical and research outcome. The aim of this study was to establish score linkages (concordance) among three HRQoL assessment tools: WHOQOL-BREF, DUQOL and HRQOLDA scores, applying a Rasch-based common person equating procedure.MethodsOne hundred and twenty one adults were recruited from inpatient and outpatient treatment facilities in Sydney West Area Health Service. WHOQOL-BREF, DUQOL and HRQOLDA tests were administered. Item parameters were calculated applying Rating Scale Model, a Rasch model.ResultsFit statistics suggest acceptable goodness-of-fit to the RSM for three instruments. Correlations between HRQOLDA and WHOQOL-BREF and between HRQOLDA and DUQOL scores were 0.719 and 0.613, and the RiU index was 30.4 % and 20.9 %, respectively. All three tests performed adequately for differentiating between individuals whose scores are located at different points along the continuum of the HRQoL construct.ConclusionThe results demonstrated a higher concordance between the HRQoLDA and WHOQOL-BREF than between the HRQoLDA and the DUQOL. However, it cannot be established unequivocally that the scores of these tools are concordant. In this study, the utility of the application of the Rasch model to provide an empirical benchmark for the selection of measurement tools to be used in the context of health care and research is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison and concordance of health-related quality of life tests among substance users

Rojas

Lozano

Foresti

et al. 2015

Health Qual Life Outcomes

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“…Health-Related Quality of Life for Drug Abusers [29,30,31]. This test is designed to evaluate the quality of life related to health specifically in substance users.…”

Section: Methodsmentioning

confidence: 99%

Reliability and Validity of the Spanish Version of the Substance Dependence Severity Scale

Vélez-Moreno

González‐Sáiz²,

Rojas³

et al. 2014

Eur Addict Res

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Purpose: The purpose of this study was to estimate the reliability and provide evidence for the validity of the Spanish version of the Substance Dependence Severity Scale (SDSS). Methods: A total of 211 substance abusers recruited at a public center that provides treatment for substance-related disorders in an outpatient setting were assessed. Reliability was estimated by Cronbach's α and test-retest. Validity evidence was studied by analyzing the relationships with the European Addiction Severity Index (EuropASI) and Health-Related Quality of Life for Drug Abusers (HRQoLDA). Results: Adequate reliability coefficients were found for the dependence scales of all addressed substances (α = 0.737 to 0.877; test-retest r = 0.796-0.952). Low internal consistency was found for the abuse scales (α = 0.329-0.694), and adequate test-retest coefficients on alcohol, cocaine and heroin (test-retest r = 0.708-0.902). The reliability of the cannabis abuse scales was inadequate. The SDSS scores showed significant relationships with the EuropASI and HRQoLDA dimensions. Conclusions: The psychometric analyses validate the use of the severity of dependence scales. The SDSS abuse scales must be used taking the limitations detected into consideration.

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“…However, these measure HRQOL and not QOL: the Health-Related Quality of Life for Drug Abusers test (HRQoLDA [26]), the Chinese instrument Quality of Life Scale for Patients with Drug Addiction (QOL-DA [27]), and the Patient Reported Outcome Measure for Recovery from Drug and Alcohol Dependence (SURE [28]). No opioid-dependence-specific or addiction-specific QOL instrument is available to date.…”

Section: Introductionmentioning

confidence: 99%

Development of OSTQOL: A Measure of Quality of Life for Patients in Opioid Substitution Treatment

et al. 2017

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Background: Quality of life (QOL) of patients in opioid substitution treatment (OST) is increasingly being addressed in research. However, no disease- or treatment-specific instrument is available to assess the QOL of this target population. The purpose of this project was to develop the first QOL instrument for OST patients. Methods: Focus groups with 60 OST patients were analyzed using thematic analysis to elicit key QOL themes as perceived by patients. Identified themes were developed into items and refined through pilot testing and cognitive debriefing. The resulting 82 items were tested in a large sample of OST patients (n = 577). Principal component analysis with varimax rotation was performed to explore a possible factor structure and reduce the number of items. Psychometric properties were assessed. Results: Factor analysis revealed 6 subscales accounting for 46.1% of the variance: Personal Development, Mental Distress, Social Contacts, Material Well-being, Opioid Substitution Treatment, and Discrimination. The 38-item instrument demonstrated good to acceptable internal consistency reliability for all subscales (Cronbach’s alpha = 0.75–0.88), and good convergent and discriminant validity. Conclusion: The Opioid Substitution Treatment Quality of Life scale (OSTQOL) is a multidimensional instrument with low respondent and administrator burden. A thorough validation is needed to assess its validity.

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

Cited by 8 publications

References 46 publications

Comparison and concordance of health-related quality of life tests among substance users

Comparison and concordance of health-related quality of life tests among substance users

Reliability and Validity of the Spanish Version of the Substance Dependence Severity Scale

Development of OSTQOL: A Measure of Quality of Life for Patients in Opioid Substitution Treatment

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