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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

GARCIA-GORDILLO, Miguel Ángel et al. Validation and comparison of EQ-5D-3L and SF-6D instruments in a Spanish Parkinson's disease population sample. Nutr. Hosp. [online]. 2015, vol.32, n.6, pp.2808-2821. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.6.9765.

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.

Palabras clave : Psychometric properties; Health; Quality of Life; EQ-5D; SF-6D.

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