Evidence map›Paper›PMID 35687931›Full record

ArticleThe Journal of surgical research2022

The Persistence of Sex Bias in High-Impact Clinical Research.

Mark H Barlek, Jessica R Rouan, Thomas G Wyatt, Irene Helenowski, Melina R Kibbe

Abstract read
In one paragraph

Article in The Journal of surgical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  5. Investigating Disordered Eating Behaviours Among Individuals Living With Neurodegenerative Disease: A Scoping Review.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
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  6. Review
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  14. The Impact of Sex and Gender in Medicine and Pharmacology.Handbook of experimental pharmacology · 2023
    Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Mark H BarlekDepartment of Surgery, University of North Carolina, Chapel Hill, North Carolina.
Jessica R RouanDepartment of Surgery, University of North Carolina, Chapel Hill, North Carolina.
Thomas G WyattDepartment of Surgery, University of North Carolina, Chapel Hill, North Carolina.
Irene HelenowskiDepartment of Preventative Medicine, Northwestern University, Chicago, Illinois.
Melina R KibbeDepartment of Surgery, University of North Carolina, Chapel Hill, North Carolina; Department of Surgery and Biomedical Engineering, University of Virginia, Charlottesville, Virginia. Electronic address: melinakibbe@virginia.edu.

Funding

TRAUMA RESEARCH FELLOWSHIPT32GM008450 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Bruce A Cairns, Anthony G Charles · 1992 to 2026
$3.8M
NIGMS NIH HHS T32 GM008450
6 · The paper itself

Abstract

introductionSex bias is present in clinical research resulting in disparities in the treatment of women. Our objective was to identify the prevalence of sex inclusiveness of participants in human clinical trials after the passage of National Institutes of Health (NIH) and United States Congress policies in 2015 and 2016 to increase female enrollment in clinical research.

methodsWe performed an observational analysis of data from registered clinical trials published in three high-impact biomedical journals from January 1, 2015 to December 31, 2019.

resultsOne thousand four hundred and forty two manuscripts with 4,765,783 human subjects were included for analysis. Significantly more males (56%) than females (44%) were included in all three journals (P < 0.0001). Sex matching ≥ 80% was found in 24.6% of publications. Industry funded 43.7% of all studies enrolling significantly more males than females (60.8% versus 39.2%, P < 0.0001). NIH funded 10.2% of studies enrolling significantly more females than males (52.7% versus 47.3%, P < 0.0001). North America and Europe contributed 82.6% of the studies with each enrolling significantly more males than females (P < 0.0001). The United States was the country contributing the most studies (36.1%), enrolling significantly more males than females (55.5% versus 45.5%, P < 0.0001). Cardiovascular disease was the subject area of the most manuscripts among medical specialties (19%), enrolling significantly more males than females (64.9% versus 35.1%, P < 0.0001). Studies analyzed by clinical trial phase, type, trial, and allocation enrolled significantly more males than females (P < 0.0001).

conclusionsSex bias remains prevalent in human clinical research trials. Improvements have been made in NIH-funded clinical trials; however, this constitutes a small percentage of overall studies.

Indexed as

ResearchSexismEuropeFemaleHumansMaleNational Institutes of Health (U.S.)North AmericaPublicationsUnited StatesClinical researchDisparitySex biasWomen

Identifiers

PMID35687931
PMCPMC11953574

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.