Evidence map›Paper›PMID 27266594›Full record

ArticleJournal of vascular surgery2016

The use of machine learning for the identification of peripheral artery disease and future mortality risk.

Elsie Gyang Ross, Nigam H Shah, Ronald L Dalman, Kevin T Nead, John P Cooke, Nicholas J Leeper

Abstract readComparative Study
In one paragraph

Article in Journal of vascular surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 2 pooled it
–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

60 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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.

Elsie Gyang RossDivision of Vascular Surgery, Stanford Health Care, Stanford, Calif.
Nigam H ShahCenter for Biomedical Informatics Research, Stanford University, Stanford, Calif.
Ronald L DalmanDivision of Vascular Surgery, Stanford Health Care, Stanford, Calif.
Kevin T NeadDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, Pa.
John P CookeDepartment of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, Tex; Center for Cardiovascular Regeneration, Houston Methodist DeBakey Heart and Vascular Center, Houston, Tex.
Nicholas J LeeperDivision of Vascular Surgery, Stanford Health Care, Stanford, Calif. Electronic address: nleeper@stanford.edu.

Funding

T32 Training Program in Mechanisms and Innovation in Vascular DiseaseT32HL098049 · NHLBI · STANFORD UNIVERSITY · PI Nicholas James Leeper, Philip S Tsao · 2010 to 2026
$6.3M
The paradoxical role of CDKN2B in blood vessel sprouting and maturationR01HL125224 · NHLBI · STANFORD UNIVERSITY · PI LEEPER, NICHOLAS JAMES · 2015 to 2018
$1.9M
The role of CDKN2B in efferocytosis and atherosclerosisR01HL123370 · NHLBI · STANFORD UNIVERSITY · PI LEEPER, NICHOLAS JAMES · 2015 to 2018
$1.6M
NHLBI NIH HHS R01 HL123370NHLBI NIH HHS R01 HL125224NHLBI NIH HHS T32 HL098049
6 · The paper itself

Abstract

objectiveA key aspect of the precision medicine effort is the development of informatics tools that can analyze and interpret "big data" sets in an automated and adaptive fashion while providing accurate and actionable clinical information. The aims of this study were to develop machine learning algorithms for the identification of disease and the prognostication of mortality risk and to determine whether such models perform better than classical statistical analyses.

methodsFocusing on peripheral artery disease (PAD), patient data were derived from a prospective, observational study of 1755 patients who presented for elective coronary angiography. We employed multiple supervised machine learning algorithms and used diverse clinical, demographic, imaging, and genomic information in a hypothesis-free manner to build models that could identify patients with PAD and predict future mortality. Comparison was made to standard stepwise linear regression models.

resultsOur machine-learned models outperformed stepwise logistic regression models both for the identification of patients with PAD (area under the curve, 0.87 vs 0.76, respectively; P = .03) and for the prediction of future mortality (area under the curve, 0.76 vs 0.65, respectively; P = .10). Both machine-learned models were markedly better calibrated than the stepwise logistic regression models, thus providing more accurate disease and mortality risk estimates.

conclusionsMachine learning approaches can produce more accurate disease classification and prediction models. These tools may prove clinically useful for the automated identification of patients with highly morbid diseases for which aggressive risk factor management can improve outcomes.

Indexed as

Decision Support TechniquesMachine LearningAgedAlgorithmsAnkle Brachial IndexArea Under CurveCoronary AngiographyDatabases, FactualData MiningFemaleGenomicsHumansLinear ModelsLogistic ModelsMaleMiddle Aged

Identifiers

PMID27266594
PMCPMC5079774

What OpenQuestion holds

Textmetadata
LicenceTDM
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.