gms | German Medical Science

Entscheiden trotz Unsicherheit: 14. Jahrestagung des Deutschen Netzwerks Evidenzbasierte Medizin

Deutsches Netzwerk Evidenzbasierte Medizin e. V.

15.03. - 16.03.2013, Berlin

Current experience with applying the GRADE approach to public health interventions: an empirical study

Meeting Abstract

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Entscheiden trotz Unsicherheit. 14. Jahrestagung des Deutschen Netzwerks Evidenzbasierte Medizin. Berlin, 15.-16.03.2013. Düsseldorf: German Medical Science GMS Publishing House; 2013. Doc13ebmD2b

doi: 10.3205/13ebm017, urn:nbn:de:0183-13ebm0176

Veröffentlicht: 11. März 2013

© 2013 Rehfuess et al.
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Background: The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach has been adopted by more than 70 national and international organisations as a systematic and transparent framework for evidence-based guideline development. With reference to an ongoing debate in the literature and within public health organisations, this study reviews current experience with the GRADE approach in rating the quality of evidence in the field of public health and identifies challenges encountered.

Methods: We conducted semi-structured interviews with representatives of groups that have applied GRADE in the context of systematic reviews or guidelines development in the field of public health. We also interviewed representatives of groups or organisations that decided against its use. We initially contacted potential participants by email. Responses were obtained by telephone interview or email, and written interview summaries were validated with participants. We analysed data across individual interviews to distil common themes and challenges.

Results: We undertook 18 interviews and obtained 15 in-depth responses relating to specific systematic reviews or guideline projects; a majority of the latter were contributed by groups within the World Health Organization. All respondents that have used GRADE appreciated the systematic and transparent process of assessing the quality of the evidence. However, respondents reported a range of minor and major challenges relating to complexity of public health interventions, choice of outcomes and outcome measures, ability to discriminate between different types of observational studies, use of non-epidemiological evidence, GRADE terminology and the GRADE and guideline development process. Respondents’ suggestions to make the approach more applicable to public health interventions included revisiting terminology, offering better guidance on how to apply GRADE to complex interventions and making modifications to the current grading scheme.

Conclusions: Our findings suggest that GRADE principles are applicable to public health and are well-received but also highlight common challenges. They provide a starting point for exploring options for improvements and, where applicable, testing these across different types of public health interventions. Several public health organisations are currently testing GRADE, and the GRADE Working Group is eager to engage with these groups to find ways to address concerns.