Evidence map›Paper›PMID 34091385›Full record

ArticleComputers in biology and medicine2021

Diagnosis and prediction of COVID-19 severity: can biochemical tests and machine learning be used as prognostic indicators?

Alexandre de Fátima Cobre, Dile Pontarolo Stremel, Guilhermina Rodrigues Noleto, Mariana Millan Fachi, Monica Surek, Astrid Wiens, Fernanda Stumpf Tonin, Roberto Pontarolo

Open access · greenAbstract read
In one paragraph

Article in Computers in biology and medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
8.0field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 63 citations in OpenAlex.

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  18. Predicting the Disease Severity of Virus Infection.Advances in experimental medicine and biology · 2022
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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

8 authors at 2 institutions in 1 country.

Alexandre de Fátima CobrePharmaceutical Sciences Postgraduate Programme, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: alexandrecobre@gmail.com.
Dile Pontarolo StremelDepartment of Forest Engineering and Technology, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: dile.stremel@gmail.com.
Guilhermina Rodrigues NoletoDepartment of Biochemistry, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: guilherminanoleto@ufpr.br.
Mariana Millan FachiPharmaceutical Sciences Postgraduate Programme, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: marianamfachi@gmail.com.
Monica SurekPharmaceutical Sciences Postgraduate Programme, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: monicasurek13@gmail.com.
Astrid WiensDepartment of Pharmacy, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: astridwiens@hotmail.com.
Fernanda Stumpf ToninPharmaceutical Sciences Postgraduate Programme, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: stumpf.tonin@ufpr.br.
Roberto PontaroloDepartment of Pharmacy, Universidade Federal Do Paraná, Curitiba, Brazil. Electronic address: pontarolo@ufpr.br.
Universidade Federal do Paraná · BRUniversidade Tecnológica Federal do Paraná · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to implement and evaluate machine learning based-models to predict COVID-19' diagnosis and disease severity.

methodsCOVID-19 test samples (positive or negative results) from patients who attended a single hospital were evaluated. Patients diagnosed with COVID-19 were categorised according to the severity of the disease. Data were submitted to exploratory analysis (principal component analysis, PCA) to detect outlier samples, recognise patterns, and identify important variables. Based on patients' laboratory tests results, machine learning models were implemented to predict disease positivity and severity. Artificial neural networks (ANN), decision trees (DT), partial least squares discriminant analysis (PLS-DA), and K nearest neighbour algorithm (KNN) models were used. The four models were validated based on the accuracy (area under the ROC curve).

resultsThe first subset of data had 5,643 patient samples (5,086 negatives and 557 positives for COVID-19). The second subset included 557 COVID-19 positive patients. The ANN, DT, PLS-DA, and KNN models allowed the classification of negative and positive samples with >84% accuracy. It was also possible to classify patients with severe and non-severe disease with an accuracy >86%. The following were associated with the prediction of COVID-19 diagnosis and severity: hyperferritinaemia, hypocalcaemia, pulmonary hypoxia, hypoxemia, metabolic and respiratory acidosis, low urinary pH, and high levels of lactate dehydrogenase.

conclusionOur analysis shows that all the models could assist in the diagnosis and prediction of COVID-19 severity.

Indexed as

COVID-19COVID-19 TestingHumansMachine LearningPrognosisSARS-CoV-2Blood testCOVID-19DiagnosisMachine learning modelSeverityUrine test

Identifiers

PMID34091385
PMCPMC8164361
OpenAlexW3173092261

What OpenQuestion holds

Textmetadata
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.