Systematic review of the impact of health care expenditure on health outcome measures: Implications for cost-effectiveness thresholds

Mac Ardy Junio Gloria, Montarat Thavorncharoensap*, Usa Chaikledkaew, Sitaporn Youngkong, Ammarin Thakkinstian, Nathorn Chaiyakunapruk, Jessica Ochalek, Anthony J. Culyer

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

Abstract

Objective: Empirical estimates of the impact of healthcare expenditure on health outcome measures may inform the cost-effectiveness threshold (CET) for guiding funding decisions. This study aims to systematically review studies that estimated this, summarize and compare the estimates by country income level. Methods: We searched PubMed, Scopus, York Research database, and [anonymized] for Reviews and Dissemination database from inception to 1 August 2023. For inclusion, a study had to be an original article, estimating the impact of healthcare expenditure on health outcome measures at a country level, and presented estimates, in terms of cost per quality-adjusted life year (QALY) or disability-adjusted life year (DALY). Results: We included 18 studies with 385 estimates. The median (range) estimates were PPP$ 11,224 (PPP$ 223–PPP$ 288,816) per QALY gained and PPP$ 5,963 (PPP$ 71–PPP$ 165,629) per DALY averted. As ratios of Gross Domestic Product per capita (GDPPC), these estimates were 0.376 (0.041–182.840) and 0.318 (0.004–37.315) times of GDPPC, respectively. Conclusions: The commonly used CET of GDPPC seems to be too high for all countries, but especially low-to-middle-income countries where the potential health losses from misallocation of the same money are greater. Registration: The review protocol was published and registered in PROSPERO (CRD42020147276).

Original languageEnglish
Pages (from-to)203-215
JournalExpert Review of Pharmacoeconomics and Outcomes Research
Volume24
Issue number2
Early online date25 Dec 2023
DOIs
Publication statusPublished - 2024

Bibliographical note

Funding Information:
This work had been part of the training in the Mahidol University Health Technology Assessment (MUHTA) program. Whereas the scholarship had been provided by the Mahidol University and the International Decision Support Initiative (iDSI). This work was produced as part of the International Decision Support Initiative ( www.idsihealth.org ) which supports countries to get the best value for money from health spending. iDSI receives funding support from the Bill & Melinda Gates Foundation, the UK Department for International Development, and the Rockefeller Foundation. The findings, interpretations and conclusions expressed in this article do not necessarily reflect the views of the aforementioned funding agencies.

Publisher Copyright:
© 2023 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • cost-effectiveness threshold
  • opportunity cost
  • supply-side method
  • Systematic review
  • threshold

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