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Psychometric performance of proxy-reported EQ-5D youth version 5-level (EQ-5D-Y-5L) in comparison with three-level (EQ-5D-Y-3L) in children and adolescents with scoliosis

Author

Listed:
  • Jiaer Lin

    (The Chinese University of Hong Kong)

  • Carlos King Ho Wong

    (The University of Hong Kong
    The University of Hong Kong SAR)

  • Jason Pui Yin Cheung

    (The University of Hong Kong)

  • Prudence Wing Hang Cheung

    (The University of Hong Kong)

  • Nan Luo

    (National University of Singapore)

Abstract

Objectives To assess the psychometric performance of proxy-reported EQ-5D-Y-5L (Y-5L) in comparisons with EQ-5D-Y-3L (Y-3L) administered by caregivers of patients with juvenile (JIS) or adolescent idiopathic scoliosis (AIS). Methods A consecutive sample of caregivers of JIS or AIS patients were recruited. Redistribution property, ceiling effects, and discriminative power were examined. Known-group validity was determined by examining their ability to detect differences across clinical known groups. Test–retest reliability was assessed using intraclass correlation coefficient (ICC) for EQ-VAS score and Gwet’s agreement coefficient (GAC) and percentage agreement (PA) for dimension responses. Furthermore, subgroups were analyzed for comparing test–retest reliability. Results A total of 130 caregivers were involved in the study. Consistencies between proxy-reported Y-3L and Y-5L were very high for all dimensions (93.8–99.2%). The ceiling effect in the Y-5L was slightly reduced in four dimensions (AR: 0.8–2.3%) whereas increased in “Having pain/discomfort”. Greater informativity was found in the Y-5L than the Y-3L. In known-group comparisons of curvature magnitude, curvature type, and treatment modality, Y-5L and Y-3L dimension scales showed hypothesized results. For example, more full-health responses were found in the mild Cobb angle group (Y-5L: 63.1%; Y-3L: 62.2%) than the severe Cobb angle group (Y-5L: 55.6%, Y-3L: 55.6%). EQ-VAS score exhibited low test–retest reliability (ICC: 0.41), whereas dimension scales of both instruments showed satisfactory test–retest reliability (GAC ≥ 0.7 and PA ≥ 70% for all). In most known groups, hard-to-observe dimensions were more reliable for proxy-reported Y-5L than Y-3L. Conclusion Both the proxy-reported Y-5L and Y-3L are valid and reliable instruments for assessing the HRQoL of JIS or AIS patients.

Suggested Citation

  • Jiaer Lin & Carlos King Ho Wong & Jason Pui Yin Cheung & Prudence Wing Hang Cheung & Nan Luo, 2022. "Psychometric performance of proxy-reported EQ-5D youth version 5-level (EQ-5D-Y-5L) in comparison with three-level (EQ-5D-Y-3L) in children and adolescents with scoliosis," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 23(8), pages 1383-1395, November.
    • Handle: RePEc:spr:eujhec:v:23:y:2022:i:8:d:10.1007_s10198-022-01435-z
    DOI: 10.1007/s10198-022-01435-z
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    References listed on IDEAS

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    1. Donna Rowen & Oliver Rivero-Arias & Nancy Devlin & Julie Ratcliffe, 2020. "Review of Valuation Methods of Preference-Based Measures of Health for Economic Evaluation in Child and Adolescent Populations: Where are We Now and Where are We Going?," PharmacoEconomics, Springer, vol. 38(4), pages 325-340, April.
    2. Valentina Prevolnik Rupel & Marko Ogorevc, 2021. "EQ-5D-Y Value Set for Slovenia," PharmacoEconomics, Springer, vol. 39(4), pages 463-471, April.
    3. Mathieu F. Janssen & Gouke J. Bonsel & Nan Luo, 2018. "Is EQ-5D-5L Better Than EQ-5D-3L? A Head-to-Head Comparison of Descriptive Systems and Value Sets from Seven Countries," PharmacoEconomics, Springer, vol. 36(6), pages 675-697, June.
    4. Loomis, John B., 1990. "Comparative reliability of the dichotomous choice and open-ended contingent valuation techniques," Journal of Environmental Economics and Management, Elsevier, vol. 18(1), pages 78-85, January.
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    More about this item

    Keywords

    Proxy; EQ-5D-Y-3L; EQ-5D-Y-5L; Psychometric performance; Adolescent idiopathic scoliosis;
    All these keywords.

    JEL classification:

    • I31 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General Welfare, Well-Being

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