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Type: Journal article
Title: Conducting systematic reviews of economic evaluations
Author: Gomersall, J.
Jadotte, Y.
Xue, Y.
Lockwood, S.
Riddle, D.
Preda, A.
Citation: International Journal of Evidence-Based Healthcare, 2015; 13(3):170-178
Publisher: Wolters Kluwer
Issue Date: 2015
ISSN: 1744-1595
Statement of
Judith Streak Gomersall, Yuri Tertilus Jadotte, Yifan Xue, Suzi Lockwood, Dru Riddle and Alin Preda
Abstract: Background: In 2012, a working group was established to review and enhance the Joanna Briggs Institute (JBI) guidance for conducting systematic review of evidence from economic evaluations addressing a question(s) about health intervention cost-effectiveness. Objectives: The objective is to present the outcomes of the working group. Methods: The group conducted three activities to inform the new guidance: review of literature on the utility/futility of systematic reviews of economic evaluations and consideration of its implications for updating the existing methodology; assessment of the critical appraisal tool in the existing guidance against criteria that promotes validity in economic evaluation research and two other commonly used tools; and a workshop. Results: The debate in the literature on the limitations/value of systematic review of economic evidence cautions that systematic reviews of economic evaluation evidence are unlikely to generate one size fits all answers to questions about the cost-effectiveness of interventions and their comparators. Informed by this finding, the working group adjusted the framing of the objectives definition in the existing JBI methodology. The shift is away from defining the objective as to determine one cost-effectiveness measure toward summarizing study estimates of cost-effectiveness and informed by consideration of the included study characteristics (patient, setting, intervention component, etc.), identifying conditions conducive to lowering costs and maximizing health benefits. The existing critical appraisal tool was included in the new guidance. The new guidance includes the recommendation that a tool designed specifically for the purpose of appraising model-based studies be used together with the generic appraisal tool for economic evaluations assessment to evaluate model-based evaluations. The guidance produced by the group offers reviewers guidance for each step of the systematic review process, which are the same steps followed in JBI reviews of other types of evidence. Discussion: The updated JBI guidance will be useful for researchers wanting to synthesize evidence about economic questions, either as stand-alone reviews or part of comprehensive or mixed method evidence reviews. Although the updated methodology produced by the work of the working group has improved the JBI guidance for systematic reviews of economic evaluations, there are areas where further work is required. These include adjusting the critical appraisal tool to separate out questions addressing intervention cost and effectiveness measurement; providing more explicit guidance for assessing generalizability of findings; and offering a more robust method for evidence synthesis that facilitates achieving the more ambitious review objectives.
Keywords: Economic evidence synthesis; systematic review methods
Rights: © 2015 University of Adelaide, Joanna Briggs Institute
RMID: 0030038391
DOI: 10.1097/XEB.0000000000000063
Appears in Collections:Public Health publications

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