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Validity of the EuroQoL (EQ-5D) instrument in a Greek general population

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Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών   

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Πέργαμος   

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Validity of the EuroQoL (EQ-5D) instrument in a Greek general population
Kontodimopoulos, N. Pappa, E. Niakas, D. Yfantopoulos, J. Dimitrakaki, C. Tountas, Y.
scientific_publication_article
Επιστημονική δημοσίευση - Άρθρο Περιοδικού (EL)
Scientific publication - Journal Article (EN)
2008
Objectives: The main purpose of this study was to assess the construct validity of the Greek EQ-5D instrument in measuring health-related quality of life, as well as to address the issues of concurrent validity, internal consistency reliability, and sensitivity. Methods: A stratified, representative sample (n = 1388) of the Greek general population was approached for interview (response rate 72.4%). The survey included the EQ-5D, the SF-36, and questions on sociodemographic and clinical characteristics of the sample. Results: The EQ-5D dimensions, the EQ visual analog scale, and the UK-based utility index were capable of distinguishing between groups of respondents, in the expected manner, on the basis of sex, age, education, socioeconomic status, self-reported health problems, and health services utilization, thus providing evidence of construct validity. Convergent and divergent validity of the EQ-5D descriptive system were supported by expected relationships with SF-36 scale and summary scores. Additionally, reporting a problem in a given EQ dimension was generally associated with lower SF-36 scores, supporting concurrent validity. Internal consistency reliability and sensitivity were also satisfactorily demonstrated. Conclusions: The results provide initial support for the construct validity of the EQ-5D in Greece, and, in conjunction to future studies addressing test-retest reliability and responsiveness, they support administering the instrument in health status studies, which in turn can contribute to transnational comparisons. © 2008, International Society for Pharmacoeconomics and Outcomes Research (ISPOR). (EN)
Αγγλική γλώσσα
Ερευνητικό υλικό ΕΚΠΑ
https://creativecommons.org/licenses/by-nc/4.0/
Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Πέργαμος
Άρθρο Περιοδικού (Journal Article)



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