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עמוד בית
Mon, 14.04.25

Original Articles

IMAJ | volume 12

Journal 12, December 2010
pages: 715-720

EQ-5D as a Generic Measure of Health-Related Quality of Life in Israel: Reliability, Validity and Responsiveness

    Summary

    Background: The European Quality of Life 5-Dimensions questionnaire is one of the most commonly used measures of health-related quality of life.

    Objectives: To present the feasibility, reliability, and validity of the Hebrew version of the EQ-5D[1].

    Methods: We conducted face-to-face interviews with a representative sample (n=1666) of the Israeli Jewish population. The data collected included demographic and medical information, and self-valuation of health using the EQ-5D descriptive system, Visual Analogue Scale and Time Trade-Off. Construct validity was assessed by assuming that older individuals, those with a greater burden of diseases, and those reporting experience with their own severe illness would have lower EQ-5D indexes, VAS[2] and TTO[3] values. Test-retest reliability was assessed in a small sample (n=50) that was reevaluated after a 3 week interval.

    Results: Test-retest reliability of the EQ-5D and VAS was very high (r ≥ 0.85). Reliability of the TTO was moderate (r = 0.48). There were significant differences in the EQ-5D index, profiles, VAS and TTO between healthy and sick respondents and younger and older respondents, indicating good validity of the instrument.

    Conclusions: The Hebrew translation of the EQ-5D is a practical, reliable and valid instrument for assessing the health-related quality of life of the general Israeli Jewish population.



    [1] EQ-5D = European Quality of Life 5-Dimensions
    [2] VAS = Visual Analogue Scale
    [3] TTO = Time Trade-Off

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