《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2021, Vol. 27 ›› Issue (9): 1072-1077.doi: 10.3969/j.issn.1006-9771.2021.09.011

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Machine Learning Models for Early Prediction of Vascular Cognitive Impairment

ZHANG Qian1,2,BIAN Min-jie1,2,HE Qin1,2,HUANG Dong-feng1,2()   

  1. 1. Department of Rehabilitation Medicine, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518000, China
    2. Guangdong Engineering and Technology Research Center for Rehabilitation Medicine and Translation, Guangzhou, Guangdong 510000, China
  • Received:2021-05-18 Revised:2021-08-06 Published:2021-09-25 Online:2021-10-09
  • Contact: HUANG Dong-feng E-mail:Huangdf_sysu@163.com
  • Supported by:
    Sun Yat-sen University Clinical Medicine Reseach Plan 5010(2014001)

Abstract:

Objective To explore the predictive performance of machine learning model based on vascular risk factors in early prediction of vascular cognitive impairment.Methods From April to September, 2020, 70 subjects were enrolled and collected information of the demographics and vascular risk factors. They were assessed with Montreal Cognitive Assessment (MoCA), and then divided into normal group, vascular mild cognitive impairment (VaMCI) group and dementia group. The differences of vascular risk factors among the three groups were detected with one-way ANOVA, and the significant factors were selected to establish predictive models with support vector machine (SVM) and extreme learning machine (ELM). The predictive performance of two models was compared with Receiver Operating Characteristic Curve.Results There were 32 cases in the normal group, 23 in VaMCI group and 15 in dementia group. Systolic blood pressure, fasting blood glucose, total cholesterol, low density lipoprotein and blood uric acid were significantly different among the three groups (F > 3.318, P < 0.05). The area under curve was the most (0.911) in SVM model predicting for VaMCI (P < 0.01), and the predictive efficacy was better for SVM model.Conclusion SVM predictive model based on vascular risk factors may be more effective for predicting VaMCI.

Key words: vascular cognitive impairment, support vector machines, extreme learning machines, machine learning, predictive model