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Gender and other potential biases in peer review: cross-sectional analysis of 38 250 external peer review reports

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Severin Anna, Martins Joao, Heyard Rachel, Delavy François, Jorstad Anne, Egger Matthias,
Project Forschungspauschale Forschungsratspräsident SNF
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Original article (peer-reviewed)

Journal BMJ Open
Volume (Issue) 10(8)
Page(s) e035058
Title of proceedings BMJ Open
DOI 10.1136/bmjopen-2019-035058

Open Access

URL http://doi.org/10.1136/bmjopen-2019-035058
Type of Open Access Publisher (Gold Open Access)

Abstract

ObjectivesTo examine whether the gender of applicants and peer reviewers and other factors influence peer review of grant proposals submitted to a national funding agency.SettingSwiss National Science Foundation (SNSF).DesignCross-sectional analysis of peer review reports submitted from 2009 to 2016 using linear mixed effects regression models adjusted for research topic, applicant’s age, nationality, affiliation and calendar period.ParticipantsExternal peer reviewers.Primary outcome measureOverall score on a scale from 1 (worst) to 6 (best).ResultsAnalyses included 38 250 reports on 12 294 grant applications from medicine, architecture, biology, chemistry, economics, engineering, geology, history, linguistics, mathematics, physics, psychology and sociology submitted by 26 829 unique peer reviewers. In univariable analysis, male applicants received more favourable evaluation scores than female applicants (+0.18 points; 95% CI 0.14 to 0.23), and male reviewers awarded higher scores than female reviewers (+0.11; 95% CI 0.08 to 0.15). Applicant-nominated reviewers awarded higher scores than reviewers nominated by the SNSF (+0.53; 95% CI 0.50 to 0.56), and reviewers from outside of Switzerland more favourable scores than reviewers affiliated with Swiss institutions (+0.53; 95% CI 0.49 to 0.56). In multivariable analysis, differences between male and female applicants were attenuated (+0.08; 95% CI 0.04 to 0.13) whereas results changed little for source of nomination and affiliation of reviewers. The gender difference increased after September 2011, when new evaluation forms were introduced (p=0.033 from test of interaction).ConclusionsPeer review of grant applications at SNSF might be prone to biases stemming from different applicant and reviewer characteristics. The SNSF abandoned the nomination of peer reviewers by applicants. The new form introduced in 2011 may inadvertently have given more emphasis to the applicant’s track record. We encourage other funders to conduct similar studies, in order to improve the evidence base for rational and fair research funding.
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