Evidence map›Paper›PMID 38743799›Full record

ArticleEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2024

Underlying reasons for sex difference in survival following out-of-hospital cardiac arrest: a mediation analysis.

Charlotte Miedel, Martin Jonsson, Mariana Dragas, Therese Djärv, Per Nordberg, Araz Rawshani, Andreas Claesson, Sune Forsberg, Anette Nord, Johan Herlitz and 1 more

Abstract read
In one paragraph

Article in Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. Antiarrhythmic drugs for cardiac arrest with a shockable rhythm and their effect on outcomes: a systematic review with meta-analysis.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Sex differences in out-of-hospital cardiac arrest.European heart journal open · 2025
    Article
  6. Females at a Clear Disadvantage with Postoperative Myocardial Infarction Symptoms.Journal of cardiovascular development and disease · 2024
    Article
  7. Article
  8. Untangling sex disparities in cardiac arrest survival: navigating the complex interplay of predictors.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Charlotte MiedelDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.
Martin JonssonDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0002-3539-8317
Mariana DragasDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.
Therese DjärvDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.
Per NordbergDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.
Araz RawshaniDepartment of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Sahlgrenska Academy, Gothenburg, Sweden.ORCID 0000-0003-2066-3533
Andreas ClaessonDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0002-0499-9929
Sune ForsbergDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0003-2684-5194
Anette NordDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0002-1661-4539
Johan HerlitzDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0003-4139-6235
Gabriel RivaDepartment of Clinical Science and Education, Center for Resuscitation Science, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.ORCID 0000-0003-3038-0027

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsPrevious studies have indicated a poorer survival among women following out-of-hospital cardiac arrest (OHCA), but the mechanisms explaining this difference remain largely uncertain.This study aimed to assess the survival after OHCA among women and men and explore the role of potential mediators, such as resuscitation characteristics, prior comorbidity, and socioeconomic factors. METHODS AND

resultsThis was a population-based cohort study including emergency medical service-treated OHCA reported to the Swedish Registry for Cardiopulmonary Resuscitation in 2010-2020, linked to nationwide Swedish healthcare registries. The relative risks (RR) of 30-day survival were compared among women and men, and a mediation analysis was performed to investigate the importance of potential mediators. Total of 43 226 OHCAs were included, of which 14 249 (33.0%) were women. Women were older and had a lower proportion of shockable initial rhythm. The crude 30-day survival among women was 6.2% compared to 10.7% for men [RR 0.58, 95% confidence interval (CI) = 0.54-0.62]. Stepwise adjustment for shockable initial rhythm attenuated the association to RR 0.85 (95% CI = 0.79-0.91). Further adjustments for age and resuscitation factors attenuated the survival difference to null (RR 0.98; 95% CI = 0.92-1.05). Mediation analysis showed that shockable initial rhythm explained ∼50% of the negative association of female sex on survival. Older age and lower disposable income were the second and third most important variables, respectively.

conclusionWomen have a lower crude 30-day survival following OHCA compared to men. The poor prognosis is largely explained by a lower proportion of shockable initial rhythm, older age at presentation, and lower income.

Indexed as

Cardiopulmonary ResuscitationMediation AnalysisOut-of-Hospital Cardiac ArrestRegistriesAgedAged, 80 and overElectric CountershockEmergency Medical ServicesFemaleHumansMaleMiddle AgedRisk FactorsSex FactorsSocioeconomic FactorsSurvival RateGenderOHCASCDSexVentricular arrhythmiaWomen’s health

Identifiers

PMID38743799
PMCPMC11110941

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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.