Evidence map›Paper›PMID 31972509›Full record

ArticleSleep medicine2020

Sleep heart rate variability assists the automatic prediction of long-term cardiovascular outcomes.

Lulu Zhang, Huili Wu, Xiangyu Zhang, Xinfa Wei, Fengzhen Hou, Yan Ma

Open access · greenAbstract read
In one paragraph

Article in Sleep medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 73 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 2 countries.

Lulu ZhangKey Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing 210009, China.
Huili WuENT Sleep Monitoring Center, Coal General Hospital, Beijing 100028, China.
Xiangyu ZhangSEU-lenovo S-H-E Wearable Intelligent Monitoring Lab, State Key Laboratory of Bioelectronics, The School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China.
Xinfa WeiDepartment of Otolaryngology, Coal General Hospital, Beijing 100028, China.
Fengzhen HouKey Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing 210009, China. Electronic address: houfz@cpu.edu.cn.
Yan MaDivision of Interdisciplinary Medicine and Biotechnology, Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, United States.
China Pharmaceutical University · CNBeth Israel Deaconess Medical Center · USState Key Laboratory of Digital Medical Engineering

Funding

Research Training in Complementary and Integrative MedicineT32AT000051 · NCCIH · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI GLORIA Y YEH · 1999 to 2026
$10.2M
NCCIH NIH HHS T32 AT000051
6 · The paper itself

Abstract

objectiveWe aimed to investigate the association between sleep HRV and long-term cardiovascular disease (CVD) outcomes, and further explore whether HRV features can assist the automatic CVD prediction.

methodsWe retrospectively analyzed polysomnography (PSG) data obtained from 2111 participants in the Sleep Heart Health Study, who were followed up for a median of 11.8 years after PSG acquisition. During follow-up, 1252 participants suffered CVD events (CVD group) and 859 participants remained CVD-free (non-CVD group). HRV measures, derived from time-domain and frequency-domain, were calculated. Regression models were created to determine the independent predictor for long-term CVD outcomes, and to explore the association between HRV and CVD latency. Furthermore, based on HRV and other clinical features, a model was trained to automatically predict CVD outcomes using the eXtreme Gradient Boosting algorithm.

resultsCompared with the non-CVD group, decreased HRV during sleep was found in the CVD group. HRV, particularly its component of high frequency (HF), was demonstrated to be independent predictor of CVD outcomes. Moreover, normalized HF was positively correlated with CVD latency. The proposed prediction model achieved a total accuracy of 75.3%, in which sleep HRV features served as a supplement to the well-recognized CVD risk factors, such as aging, adiposity and sleep disorders.

conclusionsAssociation between sleep HRV and long-term CVD outcomes was demonstrated here, suggesting that altered HRV during sleep might occur many years prior to the onset of CVD. Machine learning models, combining sleep HRV and other clinical characteristics, should be promising in the early prediction of CVD outcomes.

Indexed as

Machine LearningBody Mass IndexCardiovascular DiseasesFemaleHeart RateHumansMaleMiddle AgedPolysomnographyRetrospective StudiesRisk FactorsSleepSleep Wake DisordersCardiovascular diseasesHeart rate variabilityMachine learningSleep

Identifiers

PMID31972509
PMCPMC7281861
OpenAlexW2995911330

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.