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Joint protection and hand exercises for hand osteoarthritis: an economic evaluation comparing methods for the analysis of factorial data

Oppong, R; Jowett, A; Nicholls, E; Whitehurst, DGT; Hill, S; Hammond, A; Hay, EM; Dziedzic, K

Joint protection and hand exercises for hand osteoarthritis: an economic evaluation comparing methods for the analysis of factorial data Thumbnail


Authors

R Oppong

A Jowett

E Nicholls

DGT Whitehurst

S Hill

EM Hay

K Dziedzic



Abstract

Objectives: Evidence regarding the cost-effectiveness of joint protection and hand exercises for the management of hand osteoarthritis (OA) is not well established. The primary aim of this study is to assess the cost-effectiveness (cost-utility) of these management options. In addition, given the absence of consensus regarding the conduct of economic evaluation alongside factorial trials, we compare different analytic methodologies.

Methods: A trial-based economic evaluation to assess the cost-utility of joint protection only, hand exercises only and joint protection plus hand exercises compared with leaflet and advice was undertaken over a 12-month period, from a UK National Health Service (NHS) perspective. Patient-level mean costs and mean quality-adjusted life years (QALYs) were calculated for each trial arm. Incremental cost-effectiveness ratios (ICERs) were estimated and cost-effectiveness acceptability curves (CEACs) constructed. The base case analysis used a ‘within the table’ analysis methodology. Two further methods were explored: the ‘at the margins’ approach, and a regression-based approach with or without an interaction term.

Results: Mean costs (QALYs) were £58.46 (0.662) for leaflet and advice, £92.12 (0.659) for joint protection, £64.51 (0.681) for hand exercises and £112.38 (0.658) for joint protection plus hand exercises. In the base case, hand exercises were the cost-effective option with an ICER of £318 per QALY gained. Hand exercises remained the most cost-effective management strategy when adopting alternative methodological approaches.

Conclusion: This is the first trial evaluating the cost effectiveness of occupational therapy-supported approaches to self-management for hand OA. Our findings showed that hand exercises were the most cost-effective option.

Citation

Oppong, R., Jowett, A., Nicholls, E., Whitehurst, D., Hill, S., Hammond, A., …Dziedzic, K. (2014). Joint protection and hand exercises for hand osteoarthritis: an economic evaluation comparing methods for the analysis of factorial data. Rheumatology, 54(5), 876-883. https://doi.org/10.1093/rheumatology/keu389

Journal Article Type Article
Publication Date Oct 21, 2014
Deposit Date Oct 31, 2014
Publicly Available Date May 12, 2016
Journal Rheumatology
Print ISSN 1462-0324
Electronic ISSN 1462-0332
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 54
Issue 5
Pages 876-883
DOI https://doi.org/10.1093/rheumatology/keu389
Publisher URL http://dx.doi.org/10.1093/rheumatology/keu389
Related Public URLs http://rheumatology.oxfordjournals.org/
Additional Information Projects : Self management, joint protection education and exercise in hand osteoarthritis: a randomised controlled trial in the community

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