Evidence map›Paper›PMID 34338767›Full record

SynthesisEuropean heart journal2021

Sex differences in outcomes after coronary artery bypass grafting: a pooled analysis of individual patient data.

Mario Gaudino, Antonino Di Franco, John H Alexander, Faisal Bakaeen, Natalia Egorova, Paul Kurlansky, Andreas Boening, Joanna Chikwe, Michelle Demetres, Philip J Devereaux and 16 more

Abstract readSystematic Review
In one paragraph

Synthesis in European heart journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 4 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

71 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  18. Coronary artery surgery outcome differences by sex.Indian journal of thoracic and cardiovascular surgery · 2026
    Review
  19. Etiology of Coronary Reintervention After Coronary Artery Bypass Surgery.Journal of cardiovascular development and disease · 2025
    Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

26 authors.

Mario GaudinoDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.ORCID 0000-0003-4680-0815
Antonino Di FrancoDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.ORCID 0000-0002-0836-295X
John H AlexanderDepartment of Medicine, Division of Cardiology, Duke Clinical Research Institute, Duke University Medical Center, 40 Duke Medicine Cir, Durham, NC 27710, USA.ORCID 0000-0002-1444-2462
Faisal BakaeenDepartment of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Carnegie Ave, Cleveland, OH 44103, USA.
Natalia EgorovaDepartment of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Pl, New York, NY 10029, USA.
Paul KurlanskyDepartment of Surgery, Center for Innovation and Outcomes Research, Columbia University Medical Center, 622 W 168th St, New York, NY 10032, USA.
Andreas BoeningDepartment of Cardiovascular Surgery, Justus-Liebig University Gießen, , Ludwigstraße 23, Gießen 35390, Germany.
Joanna ChikweDepartment of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd #2900A, Los Angeles, CA 90048, USA.
Michelle DemetresSamuel J. Wood Library and C.V. Starr Biomedical Information Center, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.ORCID 0000-0002-4997-7707
Philip J DevereauxPopulation Health Research Institute, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada.ORCID 0000-0003-2935-637X
Anno DiegelerDepartment Cardiac Surgery, Cardiovascular Center Bad Neustadt/Saale, Von-Guttenberg-Straße 11, Bad Neustadt/Saale 97616, Germany.
Arnaldo DimagliBristol Heart Institute, University of Bristol, Terrell St, Bristol BS2 8ED, UK.ORCID 0000-0003-0055-8656
Marcus FlatherResearch and Development Unit, Norfolk and Norwich University Hospitals NHS Foundation Trust, Colney Ln, Norwich NR4 7UY, UK.ORCID 0000-0001-5644-3116
Irbaz HameedDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.
Andre LamyPopulation Health Research Institute, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada.
Jennifer S LawtonDivision of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, 733 N Broadway, Baltimore, MD 21205, USA.
Wilko ReentsDepartment Cardiac Surgery, Cardiovascular Center Bad Neustadt/Saale, Von-Guttenberg-Straße 11, Bad Neustadt/Saale 97616, Germany.
N Bryce RobinsonDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.
Katia AudisioDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.
Mohamed RahoumaDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.ORCID 0000-0002-8678-2060
Patrick W SerruysDepartment of Cardiology, National University of Ireland, University Rd, Galway, Ireland.
Hironori HaraDepartment of Cardiology, National University of Ireland, University Rd, Galway, Ireland.
David P TaggartNuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford OX1 2JD, UK.ORCID 0000-0001-5343-5997
Leonard N GirardiDepartment of Cardiothoracic Surgery, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA.
Stephen E FremesSchulich Heart Centre Sunnybrook Health Sciences Centre, University of Toronto, Hospital Road, Toronto, ON M4N 3M5, Canada.ORCID 0000-0003-1723-3049
Umberto BenedettoBristol Heart Institute, University of Bristol, Terrell St, Bristol BS2 8ED, UK.ORCID 0000-0002-7074-7949

Funding

Strengthening Healthcare and Research Engagement through Data Sharing: SHARER01NS123639 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI Mario FL Gaudino, Ruth Marie Masterson Creber · 2021 to 2026
$4.4M
Randomized comparison of the clinical Outcome of single versus Multiple Arterial grafts: Quality of Life (ROMA:QOL)R01HL152021 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI GAUDINO, MARIO FL, MASTERSON CREBER, RUTH MARIE · 2020 to 2024
$4.1M
NHLBI NIH HHS R01 HL152021NINDS NIH HHS R01 NS123639
6 · The paper itself

Abstract

aimsData suggest that women have worse outcomes than men after coronary artery bypass grafting (CABG), but results have been inconsistent across studies. Due to the large differences in baseline characteristics between sexes, suboptimal risk adjustment due to low-quality data may be the reason for the observed differences. To overcome this limitation, we undertook a systematic review and pooled analysis of high-quality individual patient data from large CABG trials to compare the adjusted outcomes of women and men. METHODS AND

resultsThe primary outcome was a composite of all-cause mortality, myocardial infarction (MI), stroke, and repeat revascularization (major adverse cardiac and cerebrovascular events, MACCE). The secondary outcome was all-cause mortality. Multivariable mixed-effect Cox regression was used. Four trials involving 13 193 patients (10 479 males; 2714 females) were included. Over 5 years of follow-up, women had a significantly higher risk of MACCE [adjusted hazard ratio (HR) 1.12, 95% confidence interval (CI) 1.04-1.21; P = 0.004] but similar mortality (adjusted HR 1.03, 95% CI 0.94-1.14; P = 0.51) compared to men. Women had higher incidence of MI (adjusted HR 1.30, 95% CI 1.11-1.52) and repeat revascularization (adjusted HR 1.22, 95% CI 1.04-1.43) but not stroke (adjusted HR 1.17, 95% CI 0.90-1.52). The difference in MACCE between sexes was not significant in patients 75 years and older. The use of off-pump surgery and multiple arterial grafting did not modify the difference between sexes.

conclusionsWomen have worse outcomes than men in the first 5 years after CABG. This difference is not significant in patients aged over 75 years and is not affected by the surgical technique.

Indexed as

Coronary Artery DiseaseMyocardial InfarctionPercutaneous Coronary InterventionStrokeAgedCoronary Artery BypassFemaleHumansMaleSex CharacteristicsTreatment OutcomeCABGSexWomen

Identifiers

PMID34338767
PMCPMC8851663

What OpenQuestion holds

Textmetadata
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.