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Willingness-to-pay for genetic testing for inherited retinal disease

Author

Listed:
  • Sandy Tubeuf

    () (Leeds Institute of Health Sciences, University of Leeds)

  • Thomas A. Willis

    (Leeds Institute of Health Sciences, University of Leeds)

  • Barbara Potrata

    (Leeds Institute of Health Sciences, University of Leeds)

  • Hilary Grant

    (Leeds Institute of Health Sciences, University of Leeds)

  • Matthew J. Allsop

    (Leeds Institute of Health Sciences, University of Leeds)

  • Mushtaq Ahmed

    (Yorkshire Regional Genetics Service, Chapel Allerton Hospital, Leeds)

  • Jenny Hewison

    (Leeds Institute of Health Sciences, University of Leeds)

  • Martin McKibbin

    (Ophthalmology Department, St James’s University Hospital, Leeds)

Abstract

Background: Diagnostic tests are often evaluated according to how the results will change clinical management. Patients may value information even if the management does not change. Objective: To investigate the willingness of adults with inherited retinal disease to undergo and pay for diagnostic genetic testing in three hypothetical scenarios and to explore the factors that influence decision making. Methods: Fifty patients were purposively sampled from an initial cohort of 200 participants and presented with three scenarios whereby genetic testing provided increasing information: (i) confirming the diagnosis and inheritance pattern alone, (ii) providing additional information on future visual function, and (iii) identifying in addition a new treatment which could stabilise their condition. Willingness-to-pay (WTP) was elicited using an iterative bidding game. Regression analysis was used to investigate the probability of agreeing to and paying for testing. Qualitative data were also reviewed to provide a comprehensive understanding of WTP and decision making. Results: The majority of participants agreed to undergo genetic testing in each of the three scenarios. Scenario 2 was the least acceptable with 78% of participants agreeing to genetic testing. The probability of agreeing genetic testing decreased with age. Between 72%-96% of participants reported a WTP for genetic testing. Average WTP was £539, £1,516 and £6,895 for scenarios 1, 2 and 3 respectively. WTP appeared to rise with age and income. Qualitative data provided additional detail about the rationale behind participants’ decisions. Conclusions: The study suggests that patients with inherited retinal disease were willing to undergo and to pay for diagnostic genetic testing, suggesting that they valued the information it may provide. However, several patients preferred not to receive prognostic information and were less willing to pay for genetic testing that yielded such detail.

Suggested Citation

  • Sandy Tubeuf & Thomas A. Willis & Barbara Potrata & Hilary Grant & Matthew J. Allsop & Mushtaq Ahmed & Jenny Hewison & Martin McKibbin, 2013. "Willingness-to-pay for genetic testing for inherited retinal disease," Working Papers 1309, Academic Unit of Health Economics, Leeds Institute of Health Sciences, University of Leeds.
  • Handle: RePEc:lee:wpaper:1309
    as

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    File URL: http://medhealth.leeds.ac.uk/download/588/auhe_wp13_09
    File Function: First version, 2013
    Download Restriction: The final version of the article is published in European Journal of Human Genetics advance online publication 11 June 2014;doi: 10.1038/ejhg.2014.111

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    References listed on IDEAS

    as
    1. Peter J. Neumann & Joshua T. Cohen & James K. Hammitt & Thomas W. Concannon & Hannah R. Auerbach & ChiHui Fang & David M. Kent, 2012. "Willingness‐to‐pay for predictive tests with no immediate treatment implications: a survey of US residents," Health Economics, John Wiley & Sons, Ltd., vol. 21(3), pages 238-251, March.
    2. Richard Cookson, 2003. "Willingness to pay methods in health care: a sceptical view," Health Economics, John Wiley & Sons, Ltd., vol. 12(11), pages 891-894.
    3. Jan Abel Olsen & Richard D. Smith, 2001. "Theory versus practice: a review of 'willingness-to-pay' in health and health care," Health Economics, John Wiley & Sons, Ltd., vol. 10(1), pages 39-52.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    genetic testing; willingness-to-pay; qualitative interviews; inherited retinal disease;

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