Cited by 36Liver Disease Diagnosis and TreatmentArtificial Intelligence in HealthcareDiabetes, Cardiovascular Risks, and Lipoproteins

Machine Learning Approach to Classify Cardiovascular Disease in Patients With Nonalcoholic Fatty Liver Disease in the UK Biobank Cohort

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Sharma, Divya, Gotlieb, Neta, Farkouh, Michael E., Patel, Keyur, Xu, Wei, Bhat, Mamatha·2022·Journal of the American Heart Association

Abstract

Background: Nonalcoholic fatty liver disease (NAFLD) is the most prevalent liver disease worldwide. Cardiovascular disease (CVD) is the leading cause of mortality among patients with NAFLD. The aim of our study was to develop a machine learning algorithm integrating clinical, lifestyle, and genetic risk factors to identify CVD in patients with NAFLD. Methods and Results: We created a cohort of patients with NAFLD from the UK Biobank, diagnosed according to proton density fat fraction from magnetic resonance imaging data sets. A total of 400 patients with NAFLD with subclinical atherosclerosis or clinical CVD, defined by disease codes, constituted cases and 446 NAFLD cases with no CVD constituted controls. We evaluated 7 different supervised machine learning approaches on clinical, lifestyle, and genetic variables for identifying CVD in patients with NAFLD. The most significant clinical and lifestyle variables observed by the predictive modeling were age (59 years [54.00–63.00 years]), hypertension (145 mm Hg [134.0–156.0 mm Hg] and 85 mm Hg [79.00–93.00 mm Hg]), waist circumference (98 cm [95.00–105.00 cm]), and sedentary lifestyle, defined as time spent watching TV >4 h/d. In the genetic data, single‐nucleotide polymorphisms in IL16 and ANKLE1 gene were most significant. Our proposed ensemble‐based integrative machine learning model achieved an area under the curve of 0.849 using the random forest modeling for CVD prediction. Conclusions: We propose a machine learning algorithm that identifies CVD in patients with NAFLD through integration of significant clinical, lifestyle, and genetic risk factors. These patients with NAFLD at higher risk of CVD should be flagged for screening and aggressive treatment of their cardiometabolic risk factors to prevent cardiovascular morbidity and mortality.

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  1. [28]Sudlow C, Gallacher J, Allen N, Beral V, Burton P, Danesh J, Downey P, Elliott P, Green J, Landray M, et al. UK biobank: an open access resource for identifying the causes of a wide range of complex diseases of middle and old age. PLoS medicine. 2015; 12: e1001779. 25826379 PMC4380465
  2. [47]Rish I. An empirical study of the naive bayes classifier. In IJCAI 2001 Workshop on Empirical Methods in Artificial Intelligence. New York: IBM. 2001; 3: 41– 46.

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Authors
Sharma, D., Gotlieb, N., Farkouh, M. E., Patel, K., Xu, W., & Bhat, M.
Affiliations
  • University Health Network (CA)
  • University of Toronto (CA)
  • Toronto General Hospital (CA)
Corresponding author
  • Xu, Wei
  • Bhat, Mamatha
Venue
Journal of the American Heart Association
Published
2022-01-04
Volume
11
Issue
1
Pages
e022576-e022576
ISSN
2047-9980 (ISSN-L)
OpenAlex
W4200328492
Cited by
36
References
77
Citations by year
2026: 9 · 2025: 9 · 2024: 10 · 2023: 4 · 2022: 4
FWCI
3.24
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Journal of the American Heart Association (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • British Heart Foundation (CH/1996001/9454)
  • Medical Research Council (MC_PC_17228)
Topics
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
non-alcoholic fatty liver disease, cardiovascular disease, cardiovascular risk prediction, subclinical atherosclerosis, random forest, single nucleotide polymorphisms, interleukin-16, sedentary lifestyle, waist circumference, hypertension, proton density fat fraction, cardiometabolic risk factors, UK Biobank
MeSH terms
Machine Learning, Cardiovascular Diseases, Endonucleases, United Kingdom, Humans, Middle Aged, Risk Factors, Biological Specimen Banks, Non-alcoholic Fatty Liver Disease

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