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Empirical Comparison Between Capability and Two Health-Related Quality of Life Measures

Author

Listed:
  • Gang Chen

    (Monash University)

  • Julie Ratcliffe

    (University of South Australia Business School)

  • Billingsley Kaambwa

    (Flinders University)

  • Nikki McCaffrey

    (Flinders University
    Deakin Health Economics, Deakin University)

  • Jeff Richardson

    (Monash University)

Abstract

The Investigating Choice Experiments Capability Measure (ICECAP) is a new preference-based measure of the extent to which a person is able to achieve attributes or capabilities related to the quality of life. Conceptually, it differs from health-related quality of life (HRQoL) as the focus is upon the ability or capacity to achieve as distinct from the current experience of the attributes. The objective of this study was to explore the empirical relationships between capability as assessed by the ICECAP for Adults (ICECAP-A) and HRQoL as assessed by the Assessment of Quality of Life (AQoL)-8D and the five-level EuroQol Five Dimensions questionnaire (EQ-5D). To compare these measures, the study employed self-reported survey data from the healthy public and from seven disease areas in five countries. Results indicate that, despite their conceptual origins, the ICECAP-A is strongly associated with the AQoL-8D and that the clear distinction between capabilities and HRQoL found in other studies is attributable to the use of the EQ-5D in the comparison and the weaker association between the EQ-5D and ICECAP-A. The suggestion that ICECAP-A should be included in evaluation studies along with a HRQoL instrument is more persuasive when the instrument is the EQ-5D. The case for its inclusion with other HRQoL instruments requires further research and evaluation.

Suggested Citation

  • Gang Chen & Julie Ratcliffe & Billingsley Kaambwa & Nikki McCaffrey & Jeff Richardson, 2018. "Empirical Comparison Between Capability and Two Health-Related Quality of Life Measures," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 140(1), pages 175-190, November.
    • Handle: RePEc:spr:soinre:v:140:y:2018:i:1:d:10.1007_s11205-017-1788-9
    DOI: 10.1007/s11205-017-1788-9
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    References listed on IDEAS

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    1. Brazier, John & Ratcliffe, Julie & Salomon, Joshua & Tsuchiya, Aki, 2016. "Measuring and Valuing Health Benefits for Economic Evaluation," OUP Catalogue, Oxford University Press, edition 2, number 9780198725923.
    2. Jeff Richardson & Angelo Iezzi & Munir A. Khan & Gang Chen & Aimee Maxwell, 2016. "Measuring the Sensitivity and Construct Validity of 6 Utility Instruments in 7 Disease Areas," Medical Decision Making, , vol. 36(2), pages 147-159, February.
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    4. Terry N. Flynn & Elisabeth Huynh & Tim J. Peters & Hareth Al‐Janabi & Sam Clemens & Alison Moody & Joanna Coast, 2015. "Scoring the Icecap‐a Capability Instrument. Estimation of a UK General Population Tariff," Health Economics, John Wiley & Sons, Ltd., vol. 24(3), pages 258-269, March.
    5. Coast, Joanna & Smith, Richard D. & Lorgelly, Paula, 2008. "Welfarism, extra-welfarism and capability: The spread of ideas in health economics," Social Science & Medicine, Elsevier, vol. 67(7), pages 1190-1198, October.
    6. Joanna Coast & Richard Smith & Paula Lorgelly, 2008. "Should the capability approach be applied in Health Economics?," Health Economics, John Wiley & Sons, Ltd., vol. 17(6), pages 667-670, June.
    7. Giulia Greco & Paula Lorgelly & Inthira Yamabhai, 2016. "Outcomes in Economic Evaluations of Public Health Interventions in Low‐ and Middle‐Income Countries: Health, Capabilities and Subjective Wellbeing," Health Economics, John Wiley & Sons, Ltd., vol. 25, pages 83-94, February.
    8. Joanna Coast & Philip Kinghorn & Paul Mitchell, 2015. "The Development of Capability Measures in Health Economics: Opportunities, Challenges and Progress," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 8(2), pages 119-126, April.
    9. Wayne Velicer, 1976. "Determining the number of components from the matrix of partial correlations," Psychometrika, Springer;The Psychometric Society, vol. 41(3), pages 321-327, September.
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    Cited by:

    1. Cassandra Mah & Vanessa K. Noonan & Stirling Bryan & David G. T. Whitehurst, 2021. "Empirical Validity of a Generic, Preference-Based Capability Wellbeing Instrument (ICECAP-A) in the Context of Spinal Cord Injury," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 14(2), pages 223-240, March.
    2. Sebastian Himmler & Job Exel & Werner Brouwer, 2020. "Estimating the monetary value of health and capability well-being applying the well-being valuation approach," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 21(8), pages 1235-1244, November.

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