RT Journal Article
T1 Comparison and concordance of health-related quality of life tests among substance users
A1 Rojas Tejada, Antonio José
A1 Lozano Rojas, Óscar Martín
A1 Foresti, Katia
A1 Zolfaghari, Elham
A1 Zubaran, Carlos
AB Background: In the field of drug and alcohol abuse, health-related quality of life (HRQoL) has been used as animportant 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-basedcommon person equating procedure.Methods: One hundred and twenty one adults were recruited from inpatient and outpatient treatment facilities inSydney West Area Health Service. WHOQOL-BREF, DUQOL and HRQOLDA tests were administered. Item parameterswere calculated applying Rating Scale Model, a Rasch model.Results: Fit statistics suggest acceptable goodness-of-fit to the RSM for three instruments. Correlations betweenHRQOLDA and WHOQOL-BREF and between HRQOLDA and DUQOL scores were 0.719 and 0.613, and the RiUindex was 30.4 % and 20.9 %, respectively. All three tests performed adequately for differentiating betweenindividuals whose scores are located at different points along the continuum of the HRQoL construct.Conclusion: The results demonstrated a higher concordance between the HRQoLDA and WHOQOL-BREF thanbetween the HRQoLDA and the DUQOL. However, it cannot be established unequivocally that the scores of thesetools are concordant. In this study, the utility of the application of the Rasch model to provide an empirical benchmarkfor the selection of measurement tools to be used in the context of health care and research is demonstrated.
PB BioMed Central
SN 1477-7525
YR 2015
FD 2015
LK http://hdl.handle.net/10272/11485
UL http://hdl.handle.net/10272/11485
LA spa
NO Rojas Tejada, A., Lozano Rojas, O.M., Foresti, K., Zolfaghari, E., Zubaran, C.: "Comparison and concordance of health-related quality of life tests among substance users". Health and Quality of Life Outcomes. Vol. 13:186, (2015). DOI: 10.1186/s12955-015-0364-8
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026