Evidence map›Paper›PMID 35110325›Full record

ArticleBMJ open2022

Sex differences in risks of in-hospital and late outcomes after cardiac surgery: a nationwide population-based cohort study.

Feng-Cheng Chang, Shao-Wei Chen, Yi-Hsin Chan, Chia-Pin Lin, Victor Chien-Chia Wu, Yu-Ting Cheng, Dong-Yi Chen, Kuo-Chun Hung, Pao-Hsien Chu, An-Hsun Chou

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Review
  5. Article
  6. Article
  7. Sex difference in aortic root replacement with a stentless bioprosthesis†.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2025
    Article
  8. Article
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  12. Observational
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

10 authors at 1 institution in 1 country.

Feng-Cheng Chang *Department of Anesthesiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.ORCID 0000-0003-4947-2896
Shao-Wei Chen *Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Yi-Hsin ChanDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Chia-Pin LinDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Victor Chien-Chia WuDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Yu-Ting ChengDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Dong-Yi ChenDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Kuo-Chun HungDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.
Pao-Hsien ChuDepartment of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan.ORCID 0000-0003-0361-6348
An-Hsun ChouDepartment of Anesthesiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan f5455@cgmh.org.tw.ORCID 0000-0002-1711-5424
Chang Gung Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesOutcomes of sex differences in major cardiac surgery remain controversial. A comprehensive understanding of sex differences in major adult cardiac surgery could provide better knowledge of risk factors, management strategy and short-term or long-term outcomes. The present study aimed to investigate sex differences in the risks of outcomes of major cardiac surgeries and subgroup analyses of different valve types.

designPopulation-based nationwide cohort study.

settingData were obtained from National Health Insurance Research Database (NHIRD) in Taiwan.

participantsA total of 66 326 adult patients (age ≥20 years; 30.3% women) who underwent a first major cardiac surgery (isolated coronary artery bypass graft (CABG), isolated valve or concomitant bypass/valve) from 2000 to 2013 were identified via Taiwan NHIRD.

main outcome measuresOutcomes of primary interest were in-hospital death and all-cause mortality during follow-up period. Propensity score matching was conducted as a secondary analysis for the sensitivity test.

resultsWomen who underwent isolated CABG tended to have greater risks of both in-hospital (OR 1.37; 95% CI 1.26 to 1.49) and late outcomes (HR 1.26; 95% CI 1.22 to 1.31). Women after concomitant CABG/valve also had a greater in-hospital (OR 1.19; 95% CI 1.01 to 1.40) and long-term mortality (HR 1.14; 95% CI 1.05 to 1.24). Women after isolated mitral valve repair have a non-favourable outcome of in-hospital mortality (OR 1.70; 95% CI 1.01 to 2.87). Women who did not receive an isolated aortic valve replacement had more favourable all-cause mortality outcome (HR 0.90; 95% CI 0.84 to 0.96). Secondary analysis in the propensity score-matching cohort demonstrated results similar to the primary analysis.

conclusionsFemale patients who underwent procedures involving CABG (with or without concurrent valvular intervention) had generally worse outcomes. However, the results of isolated valve surgery were variable on the basis of the type of intervened valve.

Indexed as

Cardiac Surgical ProceduresHeart Valve Prosthesis ImplantationAdultCohort StudiesFemaleHospital MortalityHospitalsHumansMaleRetrospective StudiesRisk FactorsSex CharacteristicsTreatment OutcomeYoung Adultcardiac surgerycardiothoracic surgerysurgery

Identifiers

PMID35110325
PMCPMC8811586
OpenAlexW4210473299

What OpenQuestion holds

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LicenceCC BY-NC
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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.