Evidence map›Paper›PMID 34875193›Full record

ArticleProceedings. Biological sciences2021

Handgrip strength and 2D : 4D in women: homogeneous samples challenge the (apparent) gender paradox.

Nora Bäck, Katrin Schaefer, Sonja Windhager

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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

  1. Pooled it
  2. Article
  3. 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

3 authors.

Nora BäckDepartment of Evolutionary Anthropology, University of Vienna, Vienna, Austria.
Katrin SchaeferDepartment of Evolutionary Anthropology, University of Vienna, Vienna, Austria.ORCID 0000-0002-0173-3092
Sonja WindhagerDepartment of Evolutionary Anthropology, University of Vienna, Vienna, Austria.ORCID 0000-0003-1809-8678

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The length ratio between the second and the fourth digit (2D : 4D) is a retrospective, non-invasive biomarker for prenatal androgen exposure. It was found to be negatively correlated with handgrip strength (HGS) in men, but the evidence for women is mixed. Such studies in women call for increased detection sensitivity. The present study was designed to reduce potential confounding factors, especially age and ethnicity variation. We measured the digit ratios and HGS of 125 healthy women between 19 and 31 years of age from a remote region in Austria. 2D : 4D of both hands was significantly and negatively correlated with HGS (

Indexed as

Hand StrengthSex CharacteristicsAndrogensFemaleFingersHumansMaleRetrospective StudiesAndrogens2D : 4Ddigit ratiohandgrip strengthprenatal testosteronewomen

Identifiers

PMID34875193
PMCPMC8651413

What OpenQuestion holds

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Registered trials

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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.