Journal
JOURNAL OF AFFECTIVE DISORDERS
Volume 76, Issue 1-3, Pages 237-247Publisher
ELSEVIER
DOI: 10.1016/S0165-0327(03)00106-X
Keywords
Quality of Well-Being Scale (QWB); quality of life; depression; measurement; cost effectiveness
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Background: This study evaluated the cross-sectional and longitudinal relationship between depression severity and the Quality of Well-Being scale self-administered version (QWB-SA) in subjects diagnosed with current major depression. Methods: The research design was prospective and observational. Data were collected on a convenience sample of 58 subjects. Additional measures included the Quality of Well-Being scale interviewer-version (interviewer-QWB), Hamilton Rating Scale for Depression (HRSD-17), Beck Depression Inventory, and each were collected at baseline, 4 weeks, and 4 months postmedication treatment. Results: Cross-sectional and longitudinal QWB-SA scores were significantly correlated with depression severity and the interviewer-QWB. Treatment response, defined as 50% improvement in HRSD-17, was associated with 0.10 and 0.16 unit changes in the QWB-SA at 4 weeks and 4 months, respectively. The QWB-SA was significantly and negatively correlated with cross-sectional and longitudinal depression severity. Limitations: The study design was observational and used a convenience sample of subjects. Conclusions: The QWB-SA is less expensive to administer than the interviewer-QWB and is a useful alternative for determining the effectiveness and cost-effectiveness of treatments for depression relative to other physical and mental illness treatments. Published by Elsevier B.V.
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