Evidence map›Paper›PMID 21862719›Full record

Trial reportCirculation. Cardiovascular quality and outcomes2011

Use of hundreds of electrocardiographic biomarkers for prediction of mortality in postmenopausal women: the Women's Health Initiative.

Eiran Z Gorodeski, Hemant Ishwaran, Udaya B Kogalur, Eugene H Blackstone, Eileen Hsich, Zhu-Ming Zhang, Mara Z Vitolins, Joann E Manson, J David Curb, Lisa W Martin and 2 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Circulation. Cardiovascular quality and outcomes, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–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

29 citing papers in PubMed.

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  16. Application of machine learning in rheumatic disease research.The Korean journal of internal medicine · 2019
    Review
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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

12 authors.

Eiran Z GorodeskiHeart and Vascular Institute, Cleveland, OH, USA.
Hemant Ishwaran
Udaya B Kogalur
Eugene H Blackstone
Eileen Hsich
Zhu-Ming Zhang
Mara Z Vitolins
Joann E Manson
J David Curb
Lisa W Martin
Ronald J Prineas
Michael S Lauer

Funding

VANGUARD CENTER FOR WOMEN'S HEALTH INITIATIVEN01WH032120 · WH · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI LANGER, ROBERT D. · 1993 to 2001
$756k
PHS HHS 8324207WHI NIH HHS N01 WH032120
6 · The paper itself

Abstract

BACKGROUND- Simultaneous contribution of hundreds of electrocardiographic (ECG) biomarkers to prediction of long-term mortality in postmenopausal women with clinically normal resting ECGs is unknown. METHODS AND RESULTS- We analyzed ECGs and all-cause mortality in 33 144 women enrolled in the Women's Health Initiative trials who were without baseline cardiovascular disease or cancer and had normal ECGs by Minnesota and Novacode criteria. Four hundred and seventy-seven ECG biomarkers, encompassing global and individual ECG findings, were measured with computer algorithms. During a median follow-up of 8.1 years (range for survivors, 0.5 to 11.2 years), 1229 women died. For analyses, the cohort was randomly split into derivation (n=22 096; deaths, 819) and validation (n=11 048; deaths, 410) subsets. ECG biomarkers and demographic and clinical characteristics were simultaneously analyzed using both traditional Cox regression and random survival forest, a novel algorithmic machine-learning approach. Regression modeling failed to converge. Random survival forest variable selection yielded 20 variables that were independently predictive of long-term mortality, 14 of which were ECG biomarkers related to autonomic tone, atrial conduction, and ventricular depolarization and repolarization. CONCLUSIONS- We identified 14 ECG biomarkers from among hundreds that were associated with long-term prognosis using a novel random forest variable selection methodology. These biomarkers were related to autonomic tone, atrial conduction, ventricular depolarization, and ventricular repolarization. Quantitative ECG biomarkers have prognostic importance and may be markers of subclinical disease in apparently healthy postmenopausal women.

Indexed as

ElectrocardiographyModels, StatisticalPostmenopauseAgedAlgorithmsBiomarkersCardiovascular DiseasesFemaleFollow-Up StudiesHeart Conduction SystemHumansMiddle AgedPrognosisSurvival AnalysisWomen's HealthBiomarkers

Identifiers

PMID21862719
PMCPMC3893688

What OpenQuestion holds

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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.