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. 2016 Oct 13;65(6):814–845. doi: 10.1177/0011392116663807

Table 1.

Overview of search strategies and results.

Publication Data sampling strategies Sample size, retraction rates Reasons for retraction
Almeida et al., 2015 Web of Knowledge
? – November 2014
Title: ‘retraction’ or ‘retracted’
Only general and internal medicine
86 retraction notices
Amos, 2014 PubMed 2008–2012
Publication type: ‘Retracted Publication’
821 retracted articles Duplication: 18.1%
Plagiarism: 16.6%
Other: 60.4%
Unknown: 4.9%
Azoulay et al., 2012 PubMed 1973–2008
retracted until 2009
1104 retracted articles Fake data: 32.7%
Error/mistake: 24.6%
Not reproducible: 8.3%
Duplicate publication: 8.3%
Plagiarism: 8.2%
Questionable validity: 3.2%
Author dispute: 3.0%
Miscellaneous: 2.2%
Fake data & plagiarism: 1.4%
Publisher error: 1.2%
No IRB approval: 0.8%
No proper records: 0.3%
Unknown: 3.8%
Bilbrey et al., 2014 15 high and low impact journals 1960–2012
WoS:
Topic: retraction
PubMed:
corrected/retracted article
171 retractions Error: 62%
Fraud: 16%
Unknown: 22%
Budd et al., 1998 PubMed 1966–1997
Publication type: ‘Retraction of Publication’
235 retracted articles Error: 39%
Misconduct: 37%
Not reproducible: 16%
Unknown: 9%
Casadevall, Steen and Fang, 2014 Sample of Fang, Steen and Casadevall, 2012
Additional criteria:
Only articles retracted for error
423 retracted articles Laboratory error: 55.8%
 Unique: 54.2%
 Contamination: 31.3%
 DNA-related: 12.7%
 Control: 1.7%
Analytical error: 18.9%
Irreproducibility: 16.1%
Other & unknown: 9.2%
Cokol et al., 2007; Cokol et al., 2008 PubMed 1950–2007 871 retracted articles
Davis, 2012 PubMed 1973–2010
Publication type: ‘Retracted Publication’
1779 retracted articles
Decullier et al., 2014 PubMed 2008
Publication type: ‘Retraction of Publication’
237 retraction notices (February 2011)
14 notices added/changed until November 2011 (6%)
Decullier et al., 2013 PubMed 2008
Publication type: ‘Retraction of Publication’
241 retraction notices Error: 28%
Plagiarism: 20%
Fraud: 14%
Overlap: 11%
Authorship: 5%
Inconsistent data: 5%
Property or legal concerns: 3%
Editor: 3%
Ethics: 1%
Unknown: 9%
Fanelli, 2013 Web of Science
Publication type: ‘Correction’ and ‘Correction, Addition’
AND Title: ‘retraction’
2294 retractions
Fanelli, Costas and Larivière, 2015 Web of Science 2010–2011
Publication type: ‘Correction’ and ‘Correction, Addition’
AND Title: ‘retraction’
611 retracted articles
Fang and Casadevall, 2011 PubMed 2001–2010
Only journals with impact factor of 2.00 or more
Fang, Steen and Casadevall, 2012 PubMed 1973–2012
Only publications in English
2047 retracted articles Fraud: 34%
Error: 21%
Plagiarism: 10%
Duplication: 14%
Suspected fraud: 9%
Other: 5%
Unknown: 9%
Foo, 2011 PubMed
Publication type: ‘Retracted Publication’
1239 retracted articles
Furman, Jensen and Murray, 2012 PubMed 1977–2006
Only included if matched with Web of Science
677 retracted articles
Gasparyan et al., 2014 PubMed 2000–2013 2414 retracted articles
Grieneisen and Zhang, 2012 42 data sources 1928–2011
PubMed: Publication type: ‘Retraction of Publication’, Title: retraction, Title: retracted,
Title: withdrawal, Title: withdrawn
Web of Science
Title: retract*
6736 (combined retracted articles and retraction notices)
1275 withdrawn articles
7925 hits
Publishing misconduct: 47%
Questionable interpretations: 42%
Research misconduct: 20%
Publisher error: 9%
He, 2013 Web of Science 2001–2010
Title: ‘retraction AND vol’
Title: ‘retracted AND article’
1278 retraction notices
1455 retracted articles
Jin et al., 2013 Web of Science 1993–2011
Only singular retraction events (authors with no more than 1 retraction)
667 retraction events
Karabag and Berggren, 2012 ScienceDirect ‘retracted paper’
EBSCO Business Source Premier ‘retracted paper’
JSTOR
Emerald
37 retracted papers in Management & Economics journals
Van Leeuwen and Luwel, 2014 Web of Science ? – Jan. 2014
Suffix ‘retracted article’ added to title
2479 retracted articles Fraud: 22.1%
Errors: 21.2%
Fraud by 1 author: 12.4%
Duplicated/concurrent publishing: 11.5%
Plagiarism: 8.0%
No IRB approval: 5.3%
Independent review: 4.4%
Incomplete consultation between authors: 2.7%
Errors by editors: 1.8%
Classification errors in journal or WoS: 4.4%
Unknown: 6.2%
Lu et al., 2013 Web of Science 2000–2013 1423 retraction notices
Madlock-Brown and Eichmann, 2014 PubMed 2003–2010 1113 retracted articles Misconduct: 48%
 Duplication: 17%
 Plagiarism: 16%
 Fraud: 15%
Process: 62%
 Error: 31%
 Not reproducible 13%
 Approval issues: 7%
 Editorial mistake: 2%
Other: 1%
Unknown: 8%
Mongeon and Larivière, 2016 PubMed
Publication type ‘Retracted Publication’
Publication type ‘Retraction of Publication’
2299 retracted articles
2451 retraction notices
Categorization using the data of Azoulay et al., 2012
Mongeon and Larivière, 2013 PubMed 1996–2006
Only included if matched with Web of Science
474 retracted articles
Nath et al., 2006 PubMed 1982–2002 395 retracted articles Error: 61.8%
Misconduct: 27.1%
Unknown: 11.1%
Redman et al., 2008 PubMed 1995–2004
Publication type ‘retraction in’
328 retracted articles Error: 22%
Not reproducible: 20%
Plagiarism: 17%
Misconduct: 17%
Other: 11%
Unknown: 12%
Rosenkrantz, 2016 PubMed ?–2015
Publication type ‘Retracted Publication’
Publication type ‘Retraction of Publication’
Title ‘Retraction Notice’
3685 retracted articles
3859 retraction notices
237 retraction notices
(only radiology)
Incorrect methods: 33%
Duplication: 33%
Plagiarism 15%
Approval issues: 8%
Publisher’s mistake: 6%
Unknown: 6%
Samp et al., 2012 PubMed 2000–2011 (only drug literature) 742 retractions, 102 drug literature Misconduct: 72%
 Data fabrication: 33%
 Unethical author conduct: 44%
 Data falsification: 4%
 Plagiarism: 15%
 Questions of data veracity: 4%
Error: 29%
 Duplicate publication: 28%
 Scientific mistake: 31%
 Journal error: 7%
Unknown: 34%
Snodgrass and Pfeifer, 1992 PubMed 1975–1991
Publication type: ‘Retraction of Publication’
97 retraction notices
Steen and Hamer, 2014 PubMed ?–2011
Publication type ‘Retracted Publication’ AND ‘Randomized clinical trial’
Only publications in English
70 retracted RCTs
Steen et al., 2013 PubMed 1973–2012
Only publications in English
2047 retracted articles
Steen, 2010; Steen, 2011b; Steen, 2011c PubMed 2000–2010
Publication type: ‘Retracted Publication’
Only items with abstracts
Only publications in English
788 retracted articles Fraud: 26.6%
 Fabrication: 15%
 Falsification: 13.2%
Error: 73.5%
 Scientific mistake: 31.5%
 Duplication: 15.8%
 Plagiarism: 14.4%
 Ethical violations: 10.2%
 Journal error: 3.6%
Unknown: 8.2%
Stern et al., 2014 Sample of Fang, Steen and Casadevall, 2012
Additional criteria:
1992–2012
Only authors from the United States
Only retractions for ‘research misconduct’
291 retracted articles
Stretton et al., 2012 PubMed 1966–2008
Publication type: ‘Retracted Publication’
Only human studies, only publications in English
213 retracted misconduct publications Misconduct:
 Plagiarism: 41.8%
 Falsification & fabrication: 52.1%
 Authorship disputes: 2.3%
 Ethical issues: 2.3%
 Unknown: 1.4%
Trikalinos et al., 2008 Web of Science 1980–2006
Title: retract* OR withdraw* OR fraud* OR ‘scientific misconduct’ OR deception
Only 21 top cited journals
63 retracted articles
Wager and Williams, 2011 PubMed 1988–2009
Publication type: ‘Retraction of Publication’
Only publications in English
(1/3 random sample of 1988–2004)
870 retraction notices Error: 28%
Not reproducible: 11%
Journal error: 1%
Duplication: 17%
Plagiarism: 16%
Permission/Authorship dispute: 5%
Fabrication: 5%
Falsification: 4%
Ethical problems: 1%
Misconduct (unspecified): 2%
Inaccurate reporting: 4%
Unknown: 5%