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Current Respiratory Medicine Reviews

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ISSN (Print): 1573-398X
ISSN (Online): 1875-6387

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Research Article

A Machine Learning Approach to Predict In-Hospital Mortality in COVID-19 Patients with Underlying Cardiovascular Disease using Artificial Neural Network

Author(s): Samaneh Sabouri, Mohammad Hossein Khademian, Mehrdad Sharifi, Razieh Sadat Mousavi-Roknabadi and Vahid Ebrahimi*

Volume 18, Issue 4, 2022

Published on: 27 August, 2022

Page: [289 - 296] Pages: 8

DOI: 10.2174/1573398X18666220810093416

Price: $65

Abstract

Background: Machine learning algorithms, such as artificial neural networks (ANN), provide more accurate predictions by discovering complex patterns within data. Since COVID-19 disease is prevalent, using advanced statistical tools can upgrade clinical decision making by identifying high risk patients at the time of admission.

Objective: This study aims to predict in-hospital mortality in COVID-19 patients with underlying cardiovascular disease (CVD) using the ANN model.

Methods: In the current retrospective cohort study, 880 COVID-19 patients with underlying CVD were enrolled from 26 health centers affiliated with Shiraz University of Medical Sciences and followed up from 10 June to 26 December 2020. The five-fold cross-validation method was utilized to build the optimal ANN model for predicting in-hospital death. Moreover, the predictive power of the ANN model was assessed with concordance indices and the area under the ROC curve (AUC).

Results: The median (95% CI) survival time of hospitalization was 16.7 (15.2-18.2) days and the empirical death rate was calculated to be 17.5%. About 81.5% of intubated COVID-19 patients were dead and the majority of the patients were admitted to the hospital with triage level two (54%). According to the ANN model, intubation, blood urea nitrogen, C-reactive protein, lactate dehydrogenase, and serum calcium were the most important prognostic indicators associated with patients’ in-hospital mortality. In addition, the accuracy of the ANN model was obtained to be 83.4%, with a sensitivity and specificity of 72.7% and 85.6%, respectively (AUC=0.861).

Conclusion: In this study, the ANN model demonstrated a good performance in the prediction of in-hospital mortality in COVID-19 patients with a history of CVD.

Keywords: Artificial neural network, cardiovascular disease, COVID-19, machine learning, cohort study, ROC curve.

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