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. 2017 Dec 29;17:180. doi: 10.1186/s12874-017-0460-z

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© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Frequency distributions of responses to reporting assessment using PRISMA for Abstracts comparing SR based on methodological quality and risk of bias. This panel of plots contains different graphs showing PRISMA for Abstracts results when reviews are subgrouped by ROBIS (a,b) and AMSTAR (d,d,e) classifications. (a-b) These plots display frequency distributions of responses (‘no’, ‘yes’) to PRISMA for Abstracts comparing reviews by risk of bias using ROBIS tool (‘high’ or ‘low’). (c-d) These plots show frequency distributions of PRISMA for Abstracts responses (‘no’ or ‘yes’) comparing reviews by AMSTAR-derived methodological quality levels (‘high’, ‘moderate’, or ‘low’)