Precision Rehabilitation for Patients Post-Stroke based on Electronic Health Records and Machine Learning

• URL: http://arxiv.org/abs/2405.05993v1
• Date: Thu, 9 May 2024 04:06:44 GMT
• Title: Precision Rehabilitation for Patients Post-Stroke based on Electronic Health Records and Machine Learning
• Authors: Fengyi Gao, Xingyu Zhang, Sonish Sivarajkumar, Parker Denny, Bayan Aldhahwani, Shyam Visweswaran, Ryan Shi, William Hogan, Allyn Bove, Yanshan Wang,
• Abstract summary: We collected data for 265 stroke patients from the University of Pittsburgh Medical Center. To identify impactful exercises, we used Chi-square tests, Fisher's exact tests, and logistic regression for odds ratios. We identified three rehabilitation exercises that significantly contributed to patient post-stroke functional ability improvement.
• Score: 3.972100195623647
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this study, we utilized statistical analysis and machine learning methods to examine whether rehabilitation exercises can improve patients post-stroke functional abilities, as well as forecast the improvement in functional abilities. Our dataset is patients' rehabilitation exercises and demographic information recorded in the unstructured electronic health records (EHRs) data and free-text rehabilitation procedure notes. We collected data for 265 stroke patients from the University of Pittsburgh Medical Center. We employed a pre-existing natural language processing (NLP) algorithm to extract data on rehabilitation exercises and developed a rule-based NLP algorithm to extract Activity Measure for Post-Acute Care (AM-PAC) scores, covering basic mobility (BM) and applied cognitive (AC) domains, from procedure notes. Changes in AM-PAC scores were classified based on the minimal clinically important difference (MCID), and significance was assessed using Friedman and Wilcoxon tests. To identify impactful exercises, we used Chi-square tests, Fisher's exact tests, and logistic regression for odds ratios. Additionally, we developed five machine learning models-logistic regression (LR), Adaboost (ADB), support vector machine (SVM), gradient boosting (GB), and random forest (RF)-to predict outcomes in functional ability. Statistical analyses revealed significant associations between functional improvements and specific exercises. The RF model achieved the best performance in predicting functional outcomes. In this study, we identified three rehabilitation exercises that significantly contributed to patient post-stroke functional ability improvement in the first two months. Additionally, the successful application of a machine learning model to predict patient-specific functional outcomes underscores the potential for precision rehabilitation.

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