A New Taxonomy Was Developed for Overlap across 'Overviews of Systematic Reviews': A Meta-Research Study of Research Waste

Autor/inn/en	Lunny, Carole; Reid, Emma K.; Neelakant, Trish; Chen, Alyssa; Zhang, Jia He; Shinger, Gavindeep; Stevens, Adrienne; Tasnim, Sara; Sadeghipouya, Shadi; Adams, Stephen; Zheng, Yi Wen; Lin, Lester; Yang, Pei Hsuan; Dosanjh, Manpreet; Ngsee, Peter; Ellis, Ursula; Shea, Beverley J.; Wright, James M.
Titel	A New Taxonomy Was Developed for Overlap across 'Overviews of Systematic Reviews': A Meta-Research Study of Research Waste
Quelle	In: Research Synthesis Methods, 13 (2022) 3, S.315-329 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Lunny, Carole) ORCID (Stevens, Adrienne) ORCID (Ellis, Ursula) ORCID (Shea, Beverley J.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1759-2879
DOI	10.1002/jrsm.1542
Schlagwörter	Taxonomy; Literature Reviews; Meta Analysis; Incidence; Research Methodology + Suchen Sie Ihr Suchwort? Taxonomie; Meta-analysis; Metaanalyse; Vorkommen; Research method; Forschungsmethode
Abstract	Multiple 'overviews of reviews' conducted on the same topic ("overlapping overviews") represent a waste of research resources and can confuse clinicians making decisions amongst competing treatments. We aimed to assess the frequency and characteristics of overlapping overviews. MEDLINE, Epistemonikos and Cochrane Database of Systematic Reviews were searched for overviews that: synthesized reviews of health interventions and conducted systematic searches. Overlap was defined as: duplication of PICO eligibility criteria, and not reported as an update nor a replication. We categorized overview topics according to 22 WHO ICD-10 medical classifications, overviews as broad or narrow in scope, and overlap as identical, nearly identical, partial, or subsumed. Subsummation was defined as when broad overviews subsumed the populations, interventions and at least one outcome of another overview. Of 541 overviews included, 169 (31%) overlapped across similar PICO, fell within 13 WHO ICD-10 medical classifications, and 62 topics. 148/169 (88%) overlapping overviews were broad in scope. Fifteen overviews were classified as having nearly identical overlap (9%); 123 partial overlap (73%), and 31 subsumed (18%) others. One third of overviews overlapped in content and a majority covered broad topic areas. A multiplicity of overviews on the same topic adds to the ongoing waste of research resources, time, and effort across medical disciplines. Authors of overviews can use this study and the sample of overviews to identify gaps in the evidence for future analysis, and topics that are already studied, which do not need to be duplicated. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01