Evidence map›Paper›PMID 33871375›Full record

ArticleJournal of medical Internet research2021

Machine Learning-Driven Models to Predict Prognostic Outcomes in Patients Hospitalized With Heart Failure Using Electronic Health Records: Retrospective Study.

Haichen Lv, Xiaolei Yang, Bingyi Wang, Shaobo Wang, Xiaoyan Du, Qian Tan, Zhujing Hao, Ying Liu, Jun Yan, Yunlong Xia

Open access · goldAbstract read
In one paragraph

Article in Journal of medical Internet research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 34 citations in OpenAlex.

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  10. Artificial intelligence-powered advancements in atrial fibrillation diagnostics: a systematic review.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2025
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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

10 authors at 2 institutions in 1 country.

Haichen Lv *Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.ORCID 0000-0002-5195-8716
Xiaolei Yang *Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.ORCID 0000-0002-6132-5971
Bingyi Wang *Medical Department, Yidu Cloud (Beijing) Technology Co Ltd, Beijing, China.ORCID 0000-0002-3158-5545
Shaobo WangCollege of Life Science and Bioengineering, Beijing University of Technology, Beijing, China.ORCID 0000-0002-5195-8716
Xiaoyan DuMedical Department, Yidu Cloud (Beijing) Technology Co Ltd, Beijing, China.ORCID 0000-0003-4605-0313
Qian TanMedical Department, Happy Life Technology Co Ltd, Beijing, China.ORCID 0000-0002-8138-5525
Zhujing HaoDepartment of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.ORCID 0000-0002-8014-4113
Ying LiuDepartment of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.ORCID 0000-0001-9385-992X
Jun YanAI Lab, Yidu Cloud (Beijing) Technology Co Ltd, Beijing, China.ORCID 0000-0003-2497-5518
Yunlong XiaDepartment of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.ORCID 0000-0002-4834-1758
Dalian Medical University · CNBeijing University of Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWith the prevalence of cardiovascular diseases increasing worldwide, early prediction and accurate assessment of heart failure (HF) risk are crucial to meet the clinical demand.

objectiveOur study objective was to develop machine learning (ML) models based on real-world electronic health records to predict 1-year in-hospital mortality, use of positive inotropic agents, and 1-year all-cause readmission rate.

methodsFor this single-center study, we recruited patients with newly diagnosed HF hospitalized between December 2010 and August 2018 at the First Affiliated Hospital of Dalian Medical University (Liaoning Province, China). The models were constructed for a population set (90:10 split of data set into training and test sets) using 79 variables during the first hospitalization. Logistic regression, support vector machine, artificial neural network, random forest, and extreme gradient boosting models were investigated for outcome predictions.

resultsOf the 13,602 patients with HF enrolled in the study, 537 (3.95%) died within 1 year and 2779 patients (20.43%) had a history of use of positive inotropic agents. ML algorithms improved the performance of predictive models for 1-year in-hospital mortality (areas under the curve [AUCs] 0.92-1.00), use of positive inotropic medication (AUCs 0.85-0.96), and 1-year readmission rates (AUCs 0.63-0.96). A decision tree of mortality risk was created and stratified by single variables at levels of high-sensitivity cardiac troponin I (<0.068 μg/L), followed by percentage of lymphocytes (<14.688%) and neutrophil count (4.870×10

conclusionsML techniques based on a large scale of clinical variables can improve outcome predictions for patients with HF. The mortality decision tree may contribute to guiding better clinical risk assessment and decision making.

Indexed as

Electronic Health RecordsHeart FailureHumansMachine LearningPrognosisRetrospective Studiesheart failuremachine learningmortalitypositive inotropic agentspredictive modelingreadmission

Identifiers

PMID33871375
PMCPMC8094022
OpenAlexW3153550236

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.