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How much is enough? Exploring the dose-response relationship between cash transfers and surgical utilization in a resource-poor setting

Author

Listed:
  • Christopher Strader
  • Joanna Ashby
  • Dominique Vervoort
  • Aref Ebrahimi
  • Shoghi Agbortoko
  • Melissa Lee
  • Naomi Reiner
  • Molly Zeme
  • Mark G Shrime

Abstract

Objective: Cash transfers are a common intervention to incentivize salutary behavior in resource-constrained settings. Many cash transfer studies do not, however, account for the effect of the size of the cash transfer in design or analysis. A randomized, controlled trial of a cash-transfer intervention is planned to incentivize appropriate surgical utilization in Guinea. The aim of the current study is to determine the size of that cash transfer so as to maximize compliance while minimizing cost. Methods: Data were collected from nine coastal Guinean hospitals on their surgical capabilities and the cost of receiving surgery. These data were combined with publicly available data about the general Guinean population to create an agent-based model predicting surgical utilization. The model was validated to the available literature on surgical utilization. Cash transfer sizes from 0 to 1,000,000 Guinean francs were evaluated, with surgical compliance as the primary outcome. Results: Compliance with scheduled surgery increases as the size of a cash transfer increases. This increase is asymptotic, with a leveling in utilization occurring when the cash transfer pays for all the costs associated with surgical care. Below that cash transfer size, no other optima are found. Once a cash transfer completely covers the costs of surgery, other barriers to care such as distance and hospital quality dominate Conclusion: Cash transfers to incentivize health-promoting behavior appear to be dose-dependent. Maximal impact is likely only to occur when full patient costs are eliminated. These findings should be incorporated in the design of future cash transfer studies.

Suggested Citation

  • Christopher Strader & Joanna Ashby & Dominique Vervoort & Aref Ebrahimi & Shoghi Agbortoko & Melissa Lee & Naomi Reiner & Molly Zeme & Mark G Shrime, 2020. "How much is enough? Exploring the dose-response relationship between cash transfers and surgical utilization in a resource-poor setting," PLOS ONE, Public Library of Science, vol. 15(5), pages 1-12, May.
    • Handle: RePEc:plo:pone00:0232761
    DOI: 10.1371/journal.pone.0232761
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    References listed on IDEAS

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