1. VALIDATION AND COMPARISON OF EQ-5D-3L AND SF-6D INSTRUMENTS IN A SPANISH PARKINSON´S DISEASE POPULATION SAMPLE.
- Author
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García-Gordillo, Miguel Ángel, del Pozo-Cruz, B., Adsuar, J. C., Cordero-Ferrera, J. M., Abellán-Perpiñán, J. M., Sánchez-Martínez, F. I., Garcia-Gordillo, Miguel Ángel, Abellan-Perpiñan, J M, and Sanchez-Martinez, F I
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PARKINSON'S disease , *PSYCHOMETRICS , *QUALITY of life , *MEDICAL care , *MEDICAL decision making , *QUESTIONNAIRES , *PARKINSON'S disease diagnosis , *COMPARATIVE studies , *HEALTH status indicators , *RESEARCH methodology , *MEDICAL cooperation , *REFERENCE values , *RESEARCH , *EVALUATION research , *PSYCHOLOGY ,RESEARCH evaluation - Abstract
Introduction: generic, preference-based Health- Related Quality of Life instruments are receiving growing attention in health-care decision-making process. In spite of this, to our knowledge, EQ-5D and SF-6D have never been compared in a Parkinson´s disease population sample.Objective: the aim of this paper was to assess the psychometric properties of both instruments in a Spanish PD population sample.Methods: a total sample of 133 patients were interviewed using EQ-5D-3L and SF-6D. The validity, level of agreement and sensitivity of both instruments were computed and then compared. The Spanish tariff has been used in both instruments.Results: utilities of EQ-5D-3L and SF-6D have shown a strong correlation (r >0.50 and p<0.001) with the summary score of the PDQ-8 and the EQ-VAS score. Significant differences were observed in the stages III-IV of the Hoehn & Yahr stage. SF-6D had 51% higher efficiency than EQ-5D at detecting differences in symptoms severity.Discussion: both EQ-5D-3L and SF-6D seem to be adequate generic Health-Related Quality of Life measures in terms of validity and sensitivity.Conclusion: EQ-5D-3L presents greater ceiling and floor effects than the SF-6D instrument in this sample. Besides, the instrument SF-6D was better at detecting changes in symptoms severity compared with EQ-5D-3L. [ABSTRACT FROM AUTHOR]- Published
- 2015
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