A team from Yonsei and Kyung Hee universities employs logistic regression enhanced by recursive feature elimination and bootstrapping on the nationwide Korean Frailty and Aging Cohort Study. By selecting six optimal features—Timed Up and Go, education level, physical function limitations, nutritional assessment, balance confidence, and ADL scores—they achieve an 84.3% AUC in predicting cognitive frailty, facilitating targeted interventions.
Key points
- Model uses six features (TUG, education, PF-M, MNA, ABC, K-ADL) in logistic regression with RFE and bootstrapping.
- Data from 2,404 Korean seniors in KFACS, balanced via SMOTE across 500 bootstrap iterations.
- Model performance: AUC 84.34%, sensitivity 75.12%, specificity 80.87%, accuracy 79.51%.
Why it matters: This scalable ML screening tool offers clinicians an efficient method to detect and intervene in cognitive frailty, potentially slowing combined physical and cognitive decline.
Q&A
- What is cognitive frailty?
- How does the Timed Up and Go (TUG) test work?
- What role does the Mini Nutritional Assessment (MNA) play?
- Why use bootstrapping and SMOTE in model development?
- What is recursive feature elimination (RFE)?