TY - INPR A1 - Nussbaumer-Streit, B A1 - Ellen, M A1 - Klerings, I A1 - Sfetcu, R A1 - Riva, N A1 - Mahmi?-Kaknjo, M A1 - Poulentzas, G A1 - Martinez, P A1 - Baladia, E A1 - Ziganshina, LE A1 - Marqués, ME A1 - Aguilar, L A1 - Kassianos, AP A1 - Frampton, G A1 - Silva, AG A1 - Affengruber, L A1 - Spjker, R A1 - Thomas, J A1 - Berg, RC A1 - Kontogiani, M A1 - Sousa, M A1 - Kontogiorgis, C A1 - Gartlehner, G A1 - working group 3 in the EVBRES COST Action (https://evbres.eu), . Y1 - 2021/06/03/ N2 - Objective: We aimed to map the resource use during systematic review (SR) production and reasons why steps of the SR production are resource intensive to discover where the largest gain in improving efficiency might be possible. Study Design and Setting: We conducted a scoping review. An information specialist searched multiple databases (e.g., Ovid MEDLINE, Scopus) and implemented citation-based and grey literature searching. We employed dual and independent screenings of records at the title/abstract and full-text levels and data extraction. Results: We included 34 studies. Thirty-two reported on the resource use?mostly time; four described reasons why steps of the review process are resource intensive. Study selection, data extraction, and critical appraisal seem to be very resource intensive, while protocol development, literature search, or study retrieval take less time. Project management and administration required a large proportion of SR production time. Lack of experience, domain knowledge, use of collaborative and SR-tailored software, and good communication and management can be reasons why SR steps are resource intensive. Conclusion: Resource use during SR production varies widely. Areas with the largest resource use are administration and project management, study selection, data extraction, and critical appraisal of studies. AV - public JF - Journal of Clinical Epidemiology N1 - © 2021 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/) ID - discovery10130012 KW - costs KW - efficient KW - evidence synthesis KW - personnel KW - resources KW - time TI - Resource use during systematic review production varies widely: a scoping review. UR - https://doi.org/10.1016/j.jclinepi.2021.05.019 ER -