Evidence map›Paper›PMID 34660881›Full record

ArticleInternational journal of cardiology. Heart & vasculature2021

Electrocardiographic QRS duration is influenced by body mass index and sex.

Anupam C A Rao, Austin C C Ng, Raymond W Sy, Karin K M Chia, Peter S Hansen, Joseph Chiha, Jens Kilian, Logan B Kanagaratnam

Open access · goldAbstract read
In one paragraph

Article in International journal of cardiology. Heart & vasculature, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Native QRS duration and outcomes in heart failure with mildly reduced ejection fraction: results from a large-scaled registry.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
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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

8 authors at 5 institutions in 1 country.

Anupam C A RaoDepartment of Cardiology, Ryde Hospital, Australia.
Austin C C NgDepartment of Cardiology, Concord Repatriation General Hospital, Australia.
Raymond W SyDepartment of Cardiology, Concord Repatriation General Hospital, Australia.
Karin K M ChiaDepartment of Cardiology, Royal North Shore Hospital, Australia.
Peter S HansenDepartment of Cardiology, Royal North Shore Hospital, Australia.
Joseph ChihaDepartment of Cardiology, Bankstown Hospital, Australia.
Jens KilianDepartment of Cardiology, Bankstown Hospital, Australia.
Logan B KanagaratnamDepartment of Cardiology, Ryde Hospital, Australia.
Douglass Hanly Moir Pathology · AURoyal North Shore Hospital · AUUniversity of Sydney · AUBankstown Lidcombe Hospital · AURoyal Prince Alfred Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElectrocardiogram (ECG) measured QRS duration has been shown to influence cardiovascular outcomes. However, there is paucity of data on whether ECG QRS duration is influenced by obesity and sex in large populations.

methodsAll ECGs performed by a pathology provider over a 2-year period were included. ECGs with confounding factors and those not in sinus rhythm were excluded from the primary analysis.

resultsOf the 76,220 who met the inclusion criteria, 41,685 (55%) were females. The median age of the study cohort was 61 years (interquartile [IQR] range 48-71 years). The median QRS duration was 86 ms (IQR 80-94 ms). The median BMI was 27.6 kg/m

conclusionsIn this large cohort there was a positive association between increasing BMI and QRS duration. Females had narrower QRS duration than males at similar age and similar BMI.

Indexed as

AgeBMIBMI, Body Mass IndexCRP, C Reactive ProteinCRT, Cardiac Resynchronisation therapyCx 43, Connexin 43ECG, ElectrocardiogramECG QRS durationEDV, End Diastolic VolumeESV, End Systolic VolumeIQR, Interquartile rangePopulation healthQTc, Corrected QT intervalSexWHO, World Health Organisation

Identifiers

PMID34660881
PMCPMC8503593
OpenAlexW3203264894

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.