Journal
INFORMATICS FOR HEALTH & SOCIAL CARE
Volume 47, Issue 3, Pages 243-257Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/17538157.2021.1988957
Keywords
Type 2 diabetes; disease risk prediction; supervised machine learning algorithm; Administrative claim data
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The study on type 2 diabetes utilized supervised machine learning algorithms to develop predictive models, with random forest identified as the best performing classifier. It can be used for automated surveillance of patients at risk of developing diabetes from administrative claim data.
Type 2 diabetes is a chronic, costly disease and is a serious global population health problem. Yet, the disease is well manageable and preventable if there is an early warning. This study aims to apply supervised machine learning algorithms for developing predictive models for type 2 diabetes using administrative claim data. Following guidelines from the Elixhauser Comorbidity Index, 31 variables were considered. Five supervised machine learning algorithms were used for developing type 2 diabetes prediction models. Principal component analysis was applied to rank variables' importance in predictive models. Random forest (RF) showed the highest accuracy (85.06%) among the algorithms, closely followed by the k-nearest neighbor (84.48%). The analysis further revealed RF as a high performing algorithm irrespective of data imbalance. As revealed by the principal component analysis, patient age is the most important predictor for type 2 diabetes, followed by a comorbid condition (i.e., solid tumor without metastasis). This study's finding of RF as the best performing classifier is consistent with the promise of tree-based algorithms for public data in other works. Thus, the outcome can guide in designing automated surveillance of patients at risk of forming diabetes from administrative claim information and will be useful to health regulators and insurers.
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