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Empirical Monetary Valuation of a Quality-Adjusted Life-Year in the Kingdom of Saudi Arabia: A Willingness-to-Pay Analysis

Author

Listed:
  • Shouki Bazarbashi

    (King Faisal Specialist Hospital and Research Centre)

  • Edward B. De Vol

    (King Faisal Specialist Hospital and Research Centre)

  • Fatma Maraiki

    (King Faisal Specialist Hospital and Research Centre)

  • Ahmed Al-Jedai

    (King Faisal Specialist Hospital and Research Centre)

  • Afshan A. Ali

    (King Faisal Specialist Hospital and Research Centre)

  • Ali M. Alhammad

    (National Guard Health Affairs, King Abdulaziz Medical City)

  • Ibrahim A. Aljuffali

    (King Saud University)

  • Michael Iskedjian

    (PharmIdeas USA Inc.
    University of Montreal)

Abstract

Background No willingness-to-pay (WTP) per quality-adjusted life-year (QALY) value exists for the Kingdom of Saudi Arabia (KSA). Objective The primary objective of this study was to determine the WTP for a QALY in the KSA. Methods Adult citizens of the KSA, patients with cancer, or members of the general public (MGP) were recruited to participate in a time trade-off survey to elicit health utilities. Cancer was chosen as the disease of interest for patients and the MGP, with a scenario describing stage 3 colorectal cancer, because it is a disease condition that impacts on both quality of life and survival time. In a second step, respondents were asked about their WTP to move from the estimated health state to a state of perfect health for 1 year (QALY). Finally, that amount was processed to generate the WTP for a full QALY. The second step was repeated with a 5-year horizon. Sensitivity analyses were performed without outliers. Results From 400 participants, data from 378 subjects were obtained and usable: 177 patients, 201 MGP; 278 male, 100 female subjects; 231 aged 26–65 years. Demographic distribution varied widely between the two subgroups for age, education level, and employment status, but with less variation in sex and income. Elicited health utilities were 0.413 (0.472 after adjustment) for the overall group, 0.316 (0.416) for patients, and 0.499 (0.508) for MGP. Overall WTP for a QALY was $US25,600 (adjusted $US32,000) for the 1-year horizon and $US19,200 (adjusted $US22,720) for the 5-year horizon. Conclusion This was the first empirical attempt to estimate the WTP per QALY for the KSA. Results are comparable to those in some other countries and to gross domestic product figures for the KSA. Further research in a country-wide sample is warranted.

Suggested Citation

  • Shouki Bazarbashi & Edward B. De Vol & Fatma Maraiki & Ahmed Al-Jedai & Afshan A. Ali & Ali M. Alhammad & Ibrahim A. Aljuffali & Michael Iskedjian, 2020. "Empirical Monetary Valuation of a Quality-Adjusted Life-Year in the Kingdom of Saudi Arabia: A Willingness-to-Pay Analysis," PharmacoEconomics - Open, Springer, vol. 4(4), pages 625-633, December.
    • Handle: RePEc:spr:pharmo:v:4:y:2020:i:4:d:10.1007_s41669-020-00211-0
    DOI: 10.1007/s41669-020-00211-0
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    References listed on IDEAS

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    1. Baker, Rachel & Chilton, Sue & Donaldson, Cam & Jones-Lee, Michael & Lancsar, Emily & Mason, Helen & Metcalf, Hugh & Pennington, Mark & Wildman, John, 2011. "Searchers vs surveyors in estimating the monetary value of a QALY: resolving a nasty dilemma for NICE," Health Economics, Policy and Law, Cambridge University Press, vol. 6(4), pages 435-447, October.
    2. Frew, Emma J. & Wolstenholme, Jane L. & Whynes, David K., 2004. "Comparing willingness-to-pay: bidding game format versus open-ended and payment scale formats," Health Policy, Elsevier, vol. 68(3), pages 289-298, June.
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    1. Chris Sampson’s journal round-up for 21st December 2020
      by Chris Sampson in The Academic Health Economists' Blog on 2020-12-21 12:00:05

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    2. Christian R. C. Kouakou & Thomas G. Poder, 2022. "Willingness to pay for a quality-adjusted life year: a systematic review with meta-regression," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 23(2), pages 277-299, March.

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