Cognitive impairment is one of the core early signs of dementia, and it is also a key stage for community-based dementia prevention. Accurate and convenient prediction of cognitive impairment can help the community to identify and manage the high-risk population of dementia. Previous studies had developed several dementia predicting models, but such models may be not suitable for cognitive impairment prediction. Based on the national representative follow-up data of Chinese Longitudinal Healthy Longevity Survey (CLHLS), this project aims to develop and validate a brief cognitive impairment prediction algorithm among the community-dwelling elderly, using machine learning methods (such as Logistic regression, Naïve Bayes model, Extreme Gradient Boosting Tree and so on). Finally, based on the constructed model, an easy-to-use online intelligent assessment tool for predicting cognitive impairment risk will be developed. The general practitioners, social workers and the elderly would be invited to use the tool and we will revise the tool according to their suggestions and comments. This project is expected to provide scientific basis and technical support for community-based dementia prevention, and will also be useful for the elderly to easily understand their cognitive health.
Study Type
OBSERVATIONAL
Enrollment
13,228
Peking University Six Hospital
Beijing, China
AUC
the AUC of the prediciton model based on the test data
Time frame: an average of 3 years after baseline assessement
sensitivity
the sensitivity of the prediciton model based on the test data
Time frame: an average of 3 years after baseline assessement
specificity
the specificity of the prediciton model based on the test data
Time frame: an average of 3 years after baseline assessement
positive predictive value
the positive predictive value of the prediciton model based on the test data
Time frame: an average of 3 years after baseline assessement
negative predictive value
the negative predictive value of the prediciton model based on the test data
Time frame: an average of 3 years after baseline assessement
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