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DiSantostefano RL, Simons G, Englbrecht M, Humphreys JH, Bruce IN, Bywall KS, Radawski C, Raza K, Falahee M, Veldwijk J. Can the General Public Be a Proxy for an "At-Risk" Group in a Patient Preference Study? A Disease Prevention Example in Rheumatoid Arthritis. Med Decis Making 2024; 44:189-202. [PMID: 38240281 PMCID: PMC10865770 DOI: 10.1177/0272989x231218265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 11/02/2023] [Indexed: 02/15/2024]
Abstract
BACKGROUND When selecting samples for patient preference studies, it may be difficult or impractical to recruit participants who are eligible for a particular treatment decision. However, a general public sample may not be an appropriate proxy. OBJECTIVE This study compares preferences for rheumatoid arthritis (RA) preventive treatments between members of the general public and first-degree relatives (FDRs) of confirmed RA patients to assess whether a sample of the general public can be used as a proxy for FDRs. METHODS Participants were asked to imagine they were experiencing arthralgia and had screening tests indicating a 60% chance of developing RA within 2 yrs. Using a discrete choice experiment, participants were offered a series of choices between no treatment and 2 unlabeled hypothetical treatments to reduce the risk of RA. To assess data quality, time to complete survey sections and comprehension questions were assessed. A random parameter logit model was used to obtain attribute-level estimates, which were used to calculate relative importance, maximum acceptable risk (MAR), and market shares of hypothetical preventive treatments. RESULTS The FDR sample (n = 298) spent more time completing the survey and performed better on comprehension questions compared with the general public sample (n = 982). The relative importance ranking was similar between the general public and FDR participant samples; however, other relative preference measures involving weights including MARs and market share differed between groups, with FDRs having numerically higher MARs. CONCLUSION In the context of RA prevention, the general public (average risk) may be a reasonable proxy for a more at-risk sample (FDRs) for overall relative importance ranking but not weights. The rationale for a proxy sample should be clearly justified. HIGHLIGHTS Participants from the general public were compared to first-degree relatives on their preferences for rheumatoid arthritis (RA) preventive treatments using a discrete choice experiment.Preferences were similar between groups in terms of the most important and least important attributes of preventive treatments, with effectiveness being the most important attribute. However, relative weights differed.Attention to the survey and predicted market shares of hypothetical RA preventive treatments differed between the general public and first-degree relatives.The general public may be a reasonable proxy for an at-risk group for patient preferences ranks but not weights in the disease prevention context; however, care should be taken in sample selection for patient preference studies when choosing nonpatients.
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Affiliation(s)
| | - G. Simons
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - M. Englbrecht
- freelance healthcare data scientist, Eckental, Germany
- Department of Internal Medicine and Institute for Clinical Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Jennifer H. Humphreys
- Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
- Kellgren Centre for Rheumatology, Manchester University NHS Foundation Trust, Manchester, UK
| | - Ian N. Bruce
- Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
- Kellgren Centre for Rheumatology, Manchester University NHS Foundation Trust, Manchester, UK
- NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | | | - C. Radawski
- Eli Lilly and Company, Indianapolis, IN, USA
| | - K. Raza
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- Department of Rheumatology, Sandwell and West Birmingham NHS Trust, Birmingham, UK
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research and Research into Inflammatory Arthritis Centre Versus Arthritis, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - M. Falahee
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - J. Veldwijk
- School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, the Netherlands
- Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, the Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
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Simons G, Schölin Bywall K, Englbrecht M, Johansson EC, DiSantostefano RL, Radawski C, Veldwijk J, Raza K, Falahee M. Exploring preferences of at-risk individuals for preventive treatments for rheumatoid arthritis. Scand J Rheumatol 2023; 52:449-459. [PMID: 36178461 DOI: 10.1080/03009742.2022.2116805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2022] [Indexed: 10/14/2022]
Abstract
OBJECTIVE Some immunomodulatory drugs have been shown to delay the onset of, or lower the risk of developing, rheumatoid arthritis (RA), if given to individuals at risk. Several trials are ongoing in this area; however, little evidence is currently available about the views of those at risk of RA regarding preventive treatment. METHOD Three focus groups and three interviews explored factors that are relevant to first degree relatives (FDRs) of RA patients and members of the general public when considering taking preventive treatment for RA. The semi-structured qualitative interview prompts explored participant responses to hypothetical attributes of preventive RA medicines. Transcripts of focus group/interview proceedings were inductively coded and analysed using a framework approach. RESULTS Twenty-one individuals (five FDRs, 16 members of the general public) took part in the study. Ten broad themes were identified describing factors that participants felt would influence their decisions about whether to take preventive treatment if they were at increased risk of RA. These related either directly to features of the specific treatment or to other factors, including personal characteristics, attitude towards taking medication, and an individual's actual risk of developing RA. CONCLUSION This research highlights the importance of non-treatment factors in the decision-making process around preventive treatments, and will inform recruitment to clinical trials as well as information to support shared decision making by those considering preventive treatment. Studies of treatment preferences in individuals with a confirmed high risk of RA would further inform clinical trial design.
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Affiliation(s)
- G Simons
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - K Schölin Bywall
- Centre for Research Ethics & Bioethics, Uppsala University, Uppsala, Sweden
| | - M Englbrecht
- Freelance Healthcare Data Scientist, Eckental, Germany
- Department of Internal Medicine and Institute for Clinical Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - E C Johansson
- Patient Research Partner, Swedish Rheumatism Association, Stockholm, Sweden
| | | | - C Radawski
- Eli Lilly and Company, Indianapolis, IN, USA
| | - J Veldwijk
- Erasmus School of Health Policy & Management and Erasmus Choice Modelling Centre, Erasmus University Rotterdam, Rotterdam, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - K Raza
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- Department of Rheumatology, Sandwell and West Birmingham NHS Trust, Birmingham, UK
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research and Research into Inflammatory Arthritis Centre Versus Arthritis, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - M Falahee
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
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Kornmann MO, Hinds D, DiSantostefano RL, Le HV, Pascoe SJ. COPD-Patienten, die am stärksten von einer Behandlung mit Fluticasonfuroat plus Vilanterol (FF/VI) profitieren im Vergleich zu Vilanterol allein (VI): Ergebnisse einer gepoolten Subgruppenanalyse zweier randomisierter 1-Jahresstudien. Pneumologie 2016. [DOI: 10.1055/s-0036-1572271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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