Evidence map›Paper›PMID 34726154›Full record

ArticleeLife2021

Reporting and misreporting of sex differences in the biological sciences.

Yesenia Garcia-Sifuentes, Donna L Maney

Abstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 139 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
139citing papers in PubMed, 6 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

139 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
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  7. Claims of sex-dependent effects in the behavioral and brain sciences are infrequently supported by valid statistical comparisons.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  9. Observational
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  12. Hypocretin receptor 1 blockade early in abstinence prevents incubation of cocaine seeking and normalizes dopamine transmission.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  17. Redesigning medicine: integrating sex and gender for better health outcomes.Naunyn-Schmiedeberg's archives of pharmacology · 2026
    Review
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  19. Review
  20. Article

79 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Yesenia Garcia-SifuentesGraduate Program in Neuroscience, Emory University, Atlanta, United States.ORCID 0000-0001-8918-304X
Donna L ManeyGraduate Program in Neuroscience, Emory University, Atlanta, United States.ORCID 0000-0002-1006-2358

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As part of an initiative to improve rigor and reproducibility in biomedical research, the U.S. National Institutes of Health now requires the consideration of sex as a biological variable in preclinical studies. This new policy has been interpreted by some as a call to compare males and females with each other. Researchers testing for sex differences may not be trained to do so, however, increasing risk for misinterpretation of results. Using a list of recently published articles curated by Woitowich et al. (eLife, 2020; 9:e56344), we examined reports of sex differences and non-differences across nine biological disciplines. Sex differences were claimed in the majority of the 147 articles we analyzed; however, statistical evidence supporting those differences was often missing. For example, when a sex-specific effect of a manipulation was claimed, authors usually had not tested statistically whether females and males responded differently. Thus, sex-specific effects may be over-reported. In contrast, we also encountered practices that could mask sex differences, such as pooling the sexes without first testing for a difference. Our findings support the need for continuing efforts to train researchers how to test for and report sex differences in order to promote rigor and reproducibility in biomedical research.

Indexed as

Reproducibility of ResultsSex FactorsAnimalsBiological Science DisciplinesBiomedical ResearchFemaleHumansMaleNational Institutes of Health (U.S.)Sex CharacteristicsUnited Statesmedicinemeta-researchneurosciencenonesex differencessex inclusion

Identifiers

PMID34726154
PMCPMC8562995

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.