Cost-effectiveness analysis of two interventions to promote physical activity in a multiethnic population at high risk of diabetes: an economic evaluation of the 48-month PROPELS randomized controlled trial

Heathcote, Laura Ellen, Pollard, Daniel J., Brennan, Alan, Davies, Melanie J., Eborall, Helen, Edwardson, Charlotte L., Gillett, Michael, Gray, Laura J., Griffin, Simon J., Hardeman, Wendy ORCID: https://orcid.org/0000-0002-6498-9407, Henson, Joseph, Khunti, Kamlesh, Sharp, Stephen, Sutton, Stephen and Yates, Thomas (2024) Cost-effectiveness analysis of two interventions to promote physical activity in a multiethnic population at high risk of diabetes: an economic evaluation of the 48-month PROPELS randomized controlled trial. BMJ Open Diabetes Research & Care, 12 (2). ISSN 2052-4897

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Abstract

Introduction: Physical activity (PA) is protective against type 2 diabetes (T2D). However, data on pragmatic long-term interventions to reduce the risk of developing T2D via increased PA are lacking. This study investigated the cost-effectiveness of a pragmatic PA intervention in a multiethnic population at high risk of T2D. Materials and methods: We adapted the School for Public Health Research diabetes prevention model, using the PROPELS trial data and analyses of the NAVIGATOR trial. Lifetime costs, lifetime quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios (ICERs) were calculated for each intervention (Walking Away (WA) and Walking Away Plus (WA+)) versus usual care and compared with National Institute for Health and Care Excellence’s willingness-to-pay of £20 000–£30 000 per QALY gained. We conducted scenario analyses on the outcomes of the PROPELS trial data and a threshold analysis to determine the change in step count that would be needed for the interventions to be cost-effective. Results: Estimated lifetime costs for usual care, WA, and WA+ were £22 598, £23 018, and £22 945, respectively. Estimated QALYs were 9.323, 9.312, and 9.330, respectively. WA+ was estimated to be more effective and cheaper than WA. WA+ had an ICER of £49 273 per QALY gained versus usual care. In none of our scenario analyses did either WA or WA+ have an ICER below £20 000 per QALY gained. Our threshold analysis suggested that a PA intervention costing the same as WA+ would have an ICER below £20 000/QALY if it were to achieve an increase in step count of 500 steps per day which was 100% maintained at 4 years. Conclusions: We found that neither WA nor WA+ was cost-effective at a limit of £20 000 per QALY gained. Our threshold analysis showed that interventions to increase step count can be cost-effective at this limit if they achieve greater long-term maintenance of effect. Trial Registration number: ISRCTN registration: ISRCTN83465245: The PRomotion Of Physical activity through structured Education with differing Levels of ongoing Support for those with pre-diabetes (PROPELS)https://doi.org/10.1186/ISRCTN83465245.

Item Type: Article
Additional Information: Data availability statement: Data are available upon reasonable request. Funding information: This study/project is funded by the National Institute for Health Research (NIHR) Health Technology Assessment (HTA) Programme (grant number 09/162/02). The NIHR had no control over the conduct of the study. The views expressed are those of the author(s) and not necessarily those of the NIHR or the Department of Health and Social Care. Accelerometer processing and analysis were supported by the NIHR Leicester Biomedical Research Centre. The costs of the intervention were supported by the NHS Leicester City Clinical Commissioning Group, NHS West Leicestershire Clinical Commissioning Group, NHS East Leicestershire and Rutland Clinical Commissioning Group, and NHS England. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR, or the Department of Health.The publication costs of this article were funded by the University of Sheffield Institutional Open Access Fund.
Uncontrolled Keywords: endocrinology, diabetes and metabolism,sdg 3 - good health and well-being ,/dk/atira/pure/subjectarea/asjc/2700/2712
Faculty \ School: Faculty of Medicine and Health Sciences > School of Health Sciences
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Centres > Norwich Institute for Healthy Aging
Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health
Faculty of Medicine and Health Sciences > Research Groups > Behavioural and Implementation Science
Faculty of Medicine and Health Sciences > Research Groups > Health Promotion
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Depositing User: LivePure Connector
Date Deposited: 10 Apr 2024 09:30
Last Modified: 25 Sep 2024 17:45
URI: https://ueaeprints.uea.ac.uk/id/eprint/94883
DOI: 10.1136/bmjdrc-2023-003516

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