Observational studyJournal of endocrinological investigation2014
Concurrent comparison of the measurement properties of generic and disease-specific questionnaires in obese inpatients.
Observational study in Journal of endocrinological investigation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe concurrent comparison of questionnaires assessing health-related quality of life in the same population is necessary for better appreciating their performance and to select the best instrument for a given purpose (e.g. clinical trials and observational studies).
aimThe aim of this study was to compare the measurement properties of two disease-specific and generic questionnaires: the Obesity-related Well-Being (ORWELL97), the Obesity-Related Disability test (TSD-OC), the EuroQoL, and the World Health Organization Quality of Life questionnaire. MATERIALS/SUBJECTS: Two-hundreds and forty-nine obese inpatients [age 47 (standard deviation, SD 15) years, body mass index 44.4 (SD 5.2) kg/m(2), 69 % female] completed the four questionnaires before and after a 3-week multidisciplinary weight reduction program. Standard measurement properties were calculated and compared.
resultsIntra-class correlation coefficient ranged from 0.73 to 0.90 for most of the instruments and subscales. The standard error of measurement ranged from 9 to 21 % for the generic instruments, and from 9 to 44 % for the specific questionnaires. Missing data and ceiling effects were found for TSD-OC. Responsiveness was similar for all the instruments. The correlations between the change scores of the instruments were small (<0.37).
conclusionsIt was not possible to identify a "best" instrument, but overall the ORWELL97 seems to show better measurement properties. The two specific instruments measured different constructs and they did not show a clear superior performance compared to the generic questionnaires.
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