Journal ArticleDOI
GRADE guidelines: 5. Rating the quality of evidence--publication bias
Gordon H. Guyatt,Andrew D Oxman,Victor M. Montori,Gunn Elisabeth Vist,Regina Kunz,Jan Brozek,Pablo Alonso-Coello,Ben Djulbegovic,David C. Atkins,Yngve Falck-Ytter,John W Williams,Joerg J Meerpohl,Susan L Norris,Elie A. Akl,Holger J. Schünemann +14 more
TLDR
In the GRADE approach, randomized trials start as high-quality evidence and observational studies as low- quality evidence, but both can be rated down if a body of evidence is associated with a high risk of publication bias.About:
This article is published in Journal of Clinical Epidemiology.The article was published on 2011-12-01. It has received 1295 citations till now. The article focuses on the topics: Publication bias & Funnel plot.read more
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Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation.
Larissa Shamseer,David Moher,Mike Clarke,Davina Ghersi,Alessandro Liberati,Mark Petticrew,Paul G. Shekelle,Lesley A. Stewart +7 more
TL;DR: The PRISMA-P checklist as mentioned in this paper provides 17 items considered to be essential and minimum components of a systematic review or meta-analysis protocol, as well as a model example from an existing published protocol.
Journal ArticleDOI
GRADE guidelines: 3. Rating the quality of evidence
Howard Balshem,Mark Helfand,Mark Helfand,Holger J. Schünemann,Andrew D Oxman,Regina Kunz,Jan Brozek,Gunn Elisabeth Vist,Yngve Falck-Ytter,Joerg J Meerpohl,Susan L Norris,Gordon H. Guyatt +11 more
TL;DR: The approach of GRADE to rating quality of evidence specifies four categories-high, moderate, low, and very low-that are applied to a body of evidence, not to individual studies.
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Antithrombotic Therapy for VTE Disease: CHEST Guideline and Expert Panel Report
Clive Kearon,Elie A. Akl,Elie A. Akl,Joseph Ornelas,Allen J. Blaivas,David Jiménez,Henri Bounameaux,Menno V. Huisman,Christopher S. King,Timothy A. Morris,Namita Sood,Scott M. Stevens,Janine R.E. Vintch,Philip S. Wells,Scott C. Woller,Lisa K. Moores +15 more
TL;DR: Recommendations on 12 topics that were in the 9th edition of these guidelines are updated, and 3 new topics are addressed.
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Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2010 for the treatment of colorectal cancer
Toshiaki Watanabe,Michio Itabashi,Yasuhiro Shimada,Shinji Tanaka,Yoshinori Ito,Yoichi Ajioka,Tetsuya Hamaguchi,Ichinosuke Hyodo,Masahiro Igarashi,Hideyuki Ishida,Megumi Ishiguro,Yukihide Kanemitsu,Norihiro Kokudo,Kei Muro,Atsushi Ochiai,Masahiko Oguchi,Yasuo Ohkura,Yutaka Saito,Yoshiharu Sakai,Hideki Ueno,Takayuki Yoshino,Takahiro Fujimori,Nobuo Koinuma,Takayuki Morita,Genichi Nishimura,Yuh Sakata,Keiichi Takahashi,Hiroya Takiuchi,Osamu Tsuruta,Toshiharu Yamaguchi,Masahiro Yoshida,Naohiko Yamaguchi,Kenjiro Kotake,Kenichi Sugihara,Rectum +34 more
TL;DR: The English version of the JSCCR Guidelines 2016 is presented, which can be used as a tool for treating colorectal cancer in actual clinical practice settings and as a guide to obtaining informed consent from patients and choosing the method of treatment for each patient.
Journal ArticleDOI
Interventions to improve antibiotic prescribing practices for hospital inpatients
Peter Davey,Charis Marwick,Claire Scott,Esmita Charani,Kirsty McNeil,Erwin M. Brown,Ian M. Gould,Craig R Ramsay,Susan Michie +8 more
TL;DR: This systematic review of interventions to improve antibiotic prescribing to hospital inpatients showed interventions to be associated with improvement in prescribing according to antibiotic policy in routine clinical practice, with 70% of interventions being hospital-wide compared with 31% for RCTs.
References
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Journal ArticleDOI
Bias in meta-analysis detected by a simple, graphical test
TL;DR: Funnel plots, plots of the trials' effect estimates against sample size, are skewed and asymmetrical in the presence of publication bias and other biases Funnel plot asymmetry, measured by regression analysis, predicts discordance of results when meta-analyses are compared with single large trials.
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Operating characteristics of a rank correlation test for publication bias.
TL;DR: In this paper, an adjusted rank correlation test is proposed as a technique for identifying publication bias in a meta-analysis, and its operating characteristics are evaluated via simulations, and the test statistic is a direct statistical analogue of the popular funnel-graph.
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Why Most Published Research Findings Are False
TL;DR: In this paper, the authors discuss the implications of these problems for the conduct and interpretation of research and conclude that the probability that a research claim is true may depend on study power and bias, the number of other studies on the same question, and the ratio of true to no relationships among the relationships probed in each scientifi c fi eld.
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Publication bias in clinical research
TL;DR: The presence of publication bias in a cohort of clinical research studies is confirmed and it is suggested that conclusions based only on a review of published data should be interpreted cautiously, especially for observational studies.
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Selective Publication of Antidepressant Trials and Its Influence on Apparent Efficacy
TL;DR: A systematic literature search found that among 74 FDA-registered studies, 31%, accounting for 3449 study participants, were not published, and the increase in effect size ranged from 11 to 69% for individual drugs and was 32% overall.