Evidence map›Paper›PMID 34667093›Full record

ArticleOpen heart2021

Machine learning approaches improve risk stratification for secondary cardiovascular disease prevention in multiethnic patients.

Ashish Sarraju, Andrew Ward, Sukyung Chung, Jiang Li, David Scheinker, Fàtima Rodríguez

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Open heart, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.7field-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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Ashish Sarraju *Division of Cardiovascular Medicine and Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Andrew Ward *Department of Electrical Engineering, Stanford University, Stanford, California, USA.
Sukyung ChungPalo Alto Medical Foundation Research Institute, Palo Alto, California, USA.
Jiang LiPalo Alto Medical Foundation Research Institute, Palo Alto, California, USA.
David Scheinker *Department of Management Science and Engineering, Stanford University School of Engineering, Stanford, California, USA.
Fàtima Rodríguez *Division of Cardiovascular Medicine and Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA frodrigu@stanford.edu.ORCID 0000-0002-5226-0723
Cardiovascular Institute of the South · USPalo Alto Institute · USStanford University · US

Funding

SURPASS: (Statin Use and Risk Prediction of Atherosclerotic Cardiovascular Disease in minority Subgroups)K01HL144607 · NHLBI · STANFORD UNIVERSITY · PI RODRIGUEZ, FATIMA · 2019 to 2023
$856k
NHLBI NIH HHS K01 HL144607
6 · The paper itself

Abstract

objectivesIdentifying high-risk patients is crucial for effective cardiovascular disease (CVD) prevention. It is not known whether electronic health record (EHR)-based machine-learning (ML) models can improve CVD risk stratification compared with a secondary prevention risk score developed from randomised clinical trials (Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention, TRS 2°P).

methodsWe identified patients with CVD in a large health system, including atherosclerotic CVD (ASCVD), split into 80% training and 20% test sets. A rich set of EHR patient features was extracted. ML models were trained to estimate 5-year CVD event risk (random forests (RF), gradient-boosted machines (GBM), extreme gradient-boosted models (XGBoost), logistic regression with an L

resultsThe cohort included 32 192 patients (median age 74 years, with 46% female, 63% non-Hispanic white and 12% Asian patients and 23 475 patients with ASCVD). There were 4010 events over 5 years of follow-up. ML models demonstrated good overall performance; XGBoost demonstrated AUC 0.70 (95% CI 0.68 to 0.71) in the full CVD cohort and AUC 0.71 (95% CI 0.69 to 0.73) in patients with ASCVD, with comparable performance by GBM, RF and Lasso. TRS 2°P performed poorly in all CVD (AUC 0.51, 95% CI 0.50 to 0.53) and ASCVD (AUC 0.50, 95% CI 0.48 to 0.52) patients. ML identified nontraditional predictive variables including education level and primary care visits.

conclusionsIn a multiethnic real-world population, EHR-based ML approaches significantly improved CVD risk stratification for secondary prevention.

Indexed as

EthnicityMachine LearningAgedAged, 80 and overCardiovascular DiseasesElectronic Health RecordsFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedRetrospective StudiesRisk AssessmentRisk FactorsSurvival Ratecoronary artery diseaseelectronic health recordsrisk factors

Identifiers

PMID34667093
PMCPMC8527119
OpenAlexW3205736301

What OpenQuestion holds

Textmetadata
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.