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KMID : 1101120200170020128
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Journal of Sleep Medicine
2020 Volume.17 No. 2 p.128 ~ p.137
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Diagnostic Accuracy of Different Machine Learning Algorithms for Obstructive Sleep Apnea
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Kim Hyun-Woo
Park Eui-Hwan
Kim Dae-Jin
Mun Sue-Jean
Kim Ji-Young
Lee Gha-Hyun
Cho Jae-Wook
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Abstract
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Objectives: The objective of this study was to develop models for predicting obstructive sleep apnea (OSA) based on easily obtainable clinical information of patients using various machine learning techniques.
Methods: We used a data set that included the records of 1,368 patients, in which 1,074 patients were male (78.5 %), and 294 patients were female (21.5 %). We randomly divided the data into a training set (1,000) and test set (368). Five machine learning methods, i.e., support vector machine model, lasso logit model, naive bayes, discriminant analysis, and K-nearest neighbor (KNN), with a 10-cross fold technique were used with the proposed model to predict OSA. We evaluated the accuracy, sensitivity, specificity, and precision of each model for three thresholds [Apnea-Hypopnea Index (AHI)≥5, AHI≥15, and AHI≥30].
Results: Among the machine learning techniques, KNN showed the best results compared to the other techniques. The accuracy, sensitivity, specificity, and precision of OSA prediction were 87.0%, 91.0%, 74.4%, and 91.9%, respectively, based on AHI≥5. When the threshold of OSA was AHI≥15 or AHI≥30, KNN provided lower accuracy (79.6% each) and precision (79.0% and 68.7%), which were still higher than those of the other techniques.
Conclusions: The model derived from the KNN technique exhibited the best performance based on its highest level of accuracy. We demonstrate that this model is a useful tool for predicting OSA.
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KEYWORD
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Obstructive sleep apnea, Apnea, Machine learning, Algorithm
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