Publication bias in the anesthesiology literature

Anesthesia and Analgesia
Gildasio S De OliveiraRobert J McCarthy

Abstract

Publication bias occurs because positive finding studies are more likely to be published. The dearth of studies of negative or equivalence findings can erroneously affect future research and potentially clinical care of patients. We hypothesized that positive studies were more likely to be published than negative studies in anesthesiology journals with a higher impact and circulation. A PubMed search for controlled trials in humans published in peer-reviewed anesthesiology journals during 2008 and 2009 was performed. Fourteen anesthesiology journals and 1163 studies were evaluated. The average clinical trial impact factor (average citations per article) for each journal was determined. The quartiles for the clinical trial impact factor for the journals included in the analysis were 4, 6.1, and 9.1. Studies were scored by 2 raters as positive or negative results of the primary stated outcome. Factors previously associated with publication were also extracted. The primary outcome, the proportion of positive and negative studies in the journals in the upper quartile of the clinical trial impact factor to the lower quartiles was compared using the Fisher exact test. The odds ratio for the effect of positive study results adjusted f...Continue Reading

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Citations

Sep 28, 2012·British Journal of Anaesthesia·G S De OliveiraR J McCarthy
Apr 24, 2012·Anesthesia and Analgesia·Steven L Shafer, Franklin Dexter
Dec 12, 2012·Anesthesia and Analgesia·Gildasio S De OliveiraRobert J McCarthy
Apr 3, 2016·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Simon W ChongPhilip J Peyton
Jun 18, 2016·Journal of Cardiothoracic and Vascular Anesthesia·Robert B Schonberger
May 20, 2017·Anesthesia and Analgesia·Anuj BhatiaSteven P Cohen
Dec 30, 2014·European Journal of Anaesthesiology·Ana StevanovicMark Coburn
Sep 27, 2013·Western Journal of Nursing Research·Vanessa E Lyons, Lori L Popejoy
Dec 15, 2017·Anesthesia and Analgesia·Anthony M H HoIan Gilron
Sep 19, 2017·Anesthesia and Analgesia·Junaid NizamuddinSajid Shahul
Sep 17, 2016·Anesthesia and Analgesia·Jarrod E DaltonEdward J Mascha
Dec 9, 2014·The Clinical Journal of Pain·Gildasio S De OliveiraRobert J McCarthy
Feb 20, 2016·Plastic and Reconstructive Surgery·Joseph LopezAmir Dorafshar
Jun 20, 2018·Scandinavian Journal of Pain·Vesa Kontinen, Eija Kalso
Dec 5, 2019·Regional Anesthesia and Pain Medicine·De Q Tran, Brian D Sites
May 9, 2021·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Philip M Jones, Janet Martin
May 9, 2021·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Neil A HansonRobert H Thiele
Aug 6, 2021·Pain Practice : the Official Journal of World Institute of Pain·Taif MukhdomiGildasio S De Oliveira

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