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A Systematic Review of Discrete-Choice Experiments and Conjoint Analysis Studies in People with Multiple Sclerosis

Author

Listed:
  • Edward J. D. Webb

    (University of Leeds)

  • David Meads

    (University of Leeds)

  • Ieva Eskyte

    (University of Leeds)

  • Natalie King

    (University of Leeds)

  • Naila Dracup

    (University of Leeds)

  • Jeremy Chataway

    (University College London)

  • Helen L. Ford

    (Leeds Teaching Hospitals NHS Trust)

  • Joachim Marti

    (Université de Lausanne)

  • Sue H. Pavitt

    (University of Leeds)

  • Klaus Schmierer

    (Queen Mary University of London
    The Royal London Hospital, Barts Health NHS Trust)

  • Ana Manzano

    (University of Leeds)

Abstract

Background Multiple sclerosis (MS) is a chronic disabling, inflammatory, and degenerative disease of the central nervous system that, in most cases, requires long-term disease-modifying treatment (DMT). The drugs used vary in efficacy and adverse effect profiles. Several studies have used attribute-based stated-preference methods, primarily to investigate patient preferences for initiating or escalating DMT. Objectives To conduct a systematic review of attribute-based stated-preference studies in people with MS to identify common methods employed and to assess study quality, with reference to the specific challenges of this disease area. Methods We conducted a systematic search for studies related to attribute-based stated-preference and MS in multiple databases, including Cochrane and MEDLINE. Studies were included if they were published in a peer-reviewed journal, were on the topic of MS, and used a survey methodology that measured stated preferences for attributes of a whole. Analysis was conducted using narrative synthesis and summary statistics. Study quality was judged against the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) conjoint analysis checklist. Results We identified 16 relevant articles reporting 17 separate studies, all but one focusing on DMTs. Most studies were discrete-choice experiments. Study quality was generally high, but we recommend the following: (1) that consideration of sample sizes be improved, (2) that survey design choices be justified and documented, (3) that qualitative approaches for attribute and level selection be incorporated to better involve patients, and (4) that reporting of experimental practice be improved. The effects of DMTs on reproduction and the impact of how risk and uncertainty are presented were identified as neglected research topics. The ISPOR conjoint analysis checklist was found to be unsuitable for the assessment of study quality. Conclusion Attribute-based stated preference is a useful method with which to examine the preferences of people with MS in their choice of DMT. However, further research embracing the methodological recommendations identified, particularly greater use of qualitative methods in attribute development, is needed.

Suggested Citation

  • Edward J. D. Webb & David Meads & Ieva Eskyte & Natalie King & Naila Dracup & Jeremy Chataway & Helen L. Ford & Joachim Marti & Sue H. Pavitt & Klaus Schmierer & Ana Manzano, 2018. "A Systematic Review of Discrete-Choice Experiments and Conjoint Analysis Studies in People with Multiple Sclerosis," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 11(4), pages 391-402, August.
    • Handle: RePEc:spr:patien:v:11:y:2018:i:4:d:10.1007_s40271-017-0296-y
    DOI: 10.1007/s40271-017-0296-y
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    References listed on IDEAS

    as
    1. Train,Kenneth E., 2009. "Discrete Choice Methods with Simulation," Cambridge Books, Cambridge University Press, number 9780521766555, September.
    2. Samanta Simioni & Myriam Schluep & Nadège Bault & Giorgio Coricelli & Joerg Kleeberg & Renaud A. Du Pasquier & Markus Gschwind & Patrik Vuilleumier & Jean-Marie Annoni, 2012. "Multiple sclerosis decreases explicit counterfactual processing and risk taking in decision making," Post-Print halshs-00941077, HAL.
    3. repec:cup:judgdm:v:9:y:2014:i:1:p:1-14 is not listed on IDEAS
    4. Mark Harrison & Dan Rigby & Caroline Vass & Terry Flynn & Jordan Louviere & Katherine Payne, 2014. "Risk as an Attribute in Discrete Choice Experiments: A Systematic Review of the Literature," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 7(2), pages 151-170, June.
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    Cited by:

    1. Sophi Tatlock & Kate Sully & Anjali Batish & Chelsea Finbow & William Neill & Carol Lines & Roisin Brennan & Nicholas Adlard & Tamara Backhouse, 2023. "Individual Differences in the Patient Experience of Relapsing Multiple Sclerosis (RMS): A Multi-Country Qualitative Exploration of Drivers of Treatment Preferences Among People Living with RMS," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 16(4), pages 345-357, July.
    2. Vikas Soekhai & Esther W. Bekker-Grob & Alan R. Ellis & Caroline M. Vass, 2019. "Discrete Choice Experiments in Health Economics: Past, Present and Future," PharmacoEconomics, Springer, vol. 37(2), pages 201-226, February.
    3. Basem Al-Omari & Joviana Farhat & Mujahed Shraim, 2023. "The Role of Web-Based Adaptive Choice-Based Conjoint Analysis Technology in Eliciting Patients’ Preferences for Osteoarthritis Treatment," IJERPH, MDPI, vol. 20(4), pages 1-15, February.

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