Cited by 427Meta-analysis and systematic reviewsPharmaceutical industry and healthcareAcademic Publishing and Open Access

Publication Bias: The Problem That Won't Go Away

DICKERSIN, KAY, MIN, YUAN‐I·1993·Annals of the New York Academy of Sciences

Abstract

Conclusions about the efficacy and safety of medical interventions are based on data presented in the scientific literature. The validity of these conclusions is threatened if publication bias results from investigators or editors making decisions about publishing study results on the basis of the direction or strength of the study findings. This paper reports meta-analyses performed using data from four prospective investigations in which a total of 997 initiated studies were followed to learn of study results, publication status, and reasons for nonpublication. The analysis indicates that there is a positive association between "significant" study results and publication (OR = 2.88; 95% confidence interval [CI] 2.13 to 3.90). When the analysis was restricted to controlled trials (n = 280), an even stronger relationship between "significant" results and publication was observed (OR = 6.15; 95% CI 2.24 to 16.92), with randomized trials (n = 200) apparently no less susceptible to publication bias than controlled trials in general (OR = 8.72; 95% CI 1.91 to 39.81). In every case, failure to publish was investigator-based, and not due to editorial decisions. The results of clinical trials should not be suppressed in this way. Development of registration systems for randomized trials is essential if this problem is to be minimized in future.

Integrity signals

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Crossref · 10.1111/j.1749-6632.1993.tb26343.x

Cites

19 of 19 references verified0 citation errors · 0 not checkable

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  • Publication bias is likely when drawing generalized conclusions from the published results because null findings may not be reported and statistically significant findings tend to be published.

    “Furthermore, with null findings possibly not being reported and statistically significant findings tending to be published, publication bias is likely when drawing generalized conclusions from these published results [131].”

    From Genetics of child aggression, a systematic review (2024) · cites this paper as [131]

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Authors
DICKERSIN, K., & MIN, Y.
Affiliations
  • University of Maryland, Baltimore (US)
  • Johns Hopkins University (US)
Venue
Annals of the New York Academy of Sciences
Publisher
Wiley
Published
1993-12
Volume
703
Issue
1
Pages
135-148
ISSN
  • 0077-8923 (ISSN-L)
  • 1749-6632
OpenAlex
W2075571844
Cited by
427
References
19
Citations by year
2026: 10 · 2025: 17 · 2024: 27 · 2023: 23 · 2022: 10 · 2021: 15 · 2020: 14 · 2019: 11 · 2018: 11 · 2017: 19 · 2016: 10 · 2015: 17 · 2014: 15 · 2013: 13 · 2012: 19
FWCI
9.49
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of the New York Academy of Sciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmaceutical industry and healthcare
  • Social Sciences › Decision Sciences › Information Systems and Management › Academic Publishing and Open Access
Keywords
publication bias, clinical trial registration, significance testing, research integrity
MeSH terms
Clinical Trials as Topic, Female, Humans, Male, Professional Staff Committees, Prospective Studies, Publishing, Registries, Research Design, Research Support as Topic, Reproducibility of Results, Bias, Confidence Intervals, Logistic Models, Odds Ratio

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