Understanding the relationship between costs and the modified Rankin Scale: a systematic review, multidisciplinary consensus and recommendations for future studies

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Wilson, Alastair, Bath, Philip M.W., Berge, Eivind, Cadilhac, Dominique A., Cuche, Matthieu, Ford, Gary A., Macisaac, Rachael, Quinn, Terence J., Taylor, Matthew, Walters, Matthew, Wolff, Claudia and Lees, Kennedy R. (2017) Understanding the relationship between costs and the modified Rankin Scale: a systematic review, multidisciplinary consensus and recommendations for future studies. European Stroke Journal, 2 (1). pp. 3-12. ISSN 2396-9873

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Abstract

Background and purpose: Cost-of-illness studies often describe a single aggregate cost of a disease state. This approach is less helpful for a condition with a spectrum of outcomes like stroke. The modified Rankin Scale is the most commonly used outcome measure for stroke. We sought to describe the existing evidence on the costs of stroke according to individual modified Rankin Scale categories. This may be useful in future cost effectiveness modelling studies of interventions where cost data have not been collected, but disability outcome is known.

Methods: Systematic review of the published literature, searching electronic databases between 2004 and 2015 using validated search filters. Results were screened to identify studies presenting costs by individual modified Rankin Scale categories.

Results: Of 17,782 unique identified articles, 13 matched all inclusion criteria. In only four of these studies were costs reported by modified Rankin Scale categories. Most studies included direct medical costs only. Societal costs were assessed in two studies. Overall, studies had a high methodological and reporting quality. The heterogeneity in costing methods used in the identified studies prevented meaningful comparison of the reported cost data. Despite this limitation, the costs consistently increased with greater severity (increasing modified Rankin Scale score).

Conclusions: Few cost studies of stroke include information based on stroke recovery measured by individual modified Rankin Scale categories and the existing data are limited. To reliably capture this information, future studies are needed that preferably apply standardised costing methods to promote greater potential for use in cost-effectiveness analyses whereby direct collection of patient-level resource use has not been possible.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/843319
Keywords: Health economics, modified Rankin Scale, stroke, systematic review
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Clinical Neuroscience
Identification Number: https://doi.org/10.1177/2396987316684705
Depositing User: Eprints, Support
Date Deposited: 16 Aug 2017 11:09
Last Modified: 04 May 2020 18:32
URI: https://eprints.nottingham.ac.uk/id/eprint/44948

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