Evidence map›Paper›PMID 32320815›Full record

SynthesisNeuroscience and biobehavioral reviews2020

Quantitative meta-analysis of heart rate variability finds reduced parasympathetic cardiac tone in women compared to men during laboratory-based social stress.

Ajna Hamidovic, Kathryne Van Hedger, So Hee Choi, Stephanie Flowers, Margaret Wardle, Emma Childs

Open access · greenAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Neuroscience and biobehavioral reviews, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 6% of its field
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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Guidelines for rigor and reproducibility of heart rate variability within human cardiovascular research.American journal of physiology. Heart and circulatory physiology · 2026
    Review
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  14. Longitudinal Associations Between Peritraumatic Oestradiol and Fear Responding in Women and Men.Stress and health : journal of the International Society for the Investigation of Stress · 2025
    Article
  15. Prenatal dexamethasone programs autonomic dysregulation in female rats.American journal of physiology. Heart and circulatory physiology · 2025
    Article
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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

6 authors at 2 institutions in 2 countries.

Ajna HamidovicUniversity of Illinois at Chicago, 833 S. Wood St, Chicago, IL, 60612, United States. Electronic address: ahamidov@uic.edu.
Kathryne Van HedgerUniversity of Western Ontario, 1151 Richmond St, London, ON, Canada. Electronic address: kaseyvanhedger@gmail.com.
So Hee ChoiUniversity of Illinois at Chicago, 833 S. Wood St, Chicago, IL, 60612, United States. Electronic address: soheec@uic.edu.
Stephanie FlowersUniversity of Illinois at Chicago, 833 S. Wood St, Chicago, IL, 60612, United States. Electronic address: flowers9@uic.edu.
Margaret WardleUniversity of Illinois at Chicago 1007 W. Harrison St. Chicago IL 60607. Electronic address: mwardle@uic.edu.
Emma ChildsUniversity of Illinois at Chicago 1601 W Taylor St, Chicago, IL 60612. Electronic address: echilds@uic.edu.
University of Illinois Chicago · USWestern University · CA

Funding

Late Luteal Phase Reactivity to StressR21MH119642 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI HAMIDOVIC, AJNA · 2019 to 2020
$440k
NIMH NIH HHS R21 MH119642
6 · The paper itself

Abstract

Heart rate variability (HRV) is the inter-beat interval variation between consecutive heartbeats and an autonomic reflection of emotional regulatory abilities to flexibly respond to challenges, such as psychosocial stress. Whereas there are known sex differences in stress-induced hormonal and emotional responses, we identified a gap in our understanding of sex-specific autonomic cardiac control during stress. Thus, we assessed HRV prior to, during and after administration of a public speech task in healthy participants (n = 929) according to sex. Our meta-analysis found that during stress, women had lower HRV than men, with an overall Hedges' g of 0.29 (p < 0.0001) and 0.29 (p = 0.0003) for fixed and random effects models, respectively. We did not find significant heterogeneity or evidence of publication bias. Analyses of additional timepoints showed no baseline difference and marginally lower HRV in women during anticipation and recovery. Findings of the present meta-analysis confirm sex differences in stress-induced hyperarousal and form a justification for implementation of mechanistic studies evaluating gonadal hormones, their potent metabolites and pro-inflammatory cytokines as mediators of this relationship.

Indexed as

Autonomic Nervous SystemLaboratoriesFemaleHeartHeart RateHumansMaleStress, PsychologicalHeart rate variabilityPsychosocial stressSex differencesTrier Social Stress Test

Identifiers

PMID32320815
PMCPMC7422617
OpenAlexW3016557838

What OpenQuestion holds

Textmetadata
LicenceTDM
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.