A GAMLSS approach to digital dementia screening and profiling using a two-step cognitive self-assessment tool in China.

Purpose To develop clinically actionable, education-stratified normative reference ranges for the two-step cognitive self-assessment (TCSA) tool, addressing China's urgent need for scalable cognitive screening in its rapidly aging population. Methods Using generalised additive models for location, s...

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Bibliographic Details
Published in:	Age & Ageing Vol. 55; no. 6; pp. 1 - 12
Main Authors:	Nie, Jing, Li, Ling, Luo, Jianfeng, Li, Yuan, Wang, Qianxi, Guo, Qianqian, Yan, Feng, Zhang, Shaowei, Li, Xia
Format:	Article
Published:	Oxford University Press / USA Jun2026
Subjects:	China Self-evaluation Cross-sectional method Task performance Sex distribution Age distribution Aging Medical screening Educational attainment Activities of daily living Cognition Diagnosis of dementia Cognition disorders diagnosis Mobile apps Reference values Independent living Academic medical centers Research funding Questionnaires Digital health Cognitive processing speed Descriptive statistics Functional status Longitudinal method Neuropsychological tests Geriatric assessment Data analysis software Reaction time
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