Optimizing mobile cognitive assessment reduces administration time while maintaining screening accuracy in older adults.

ABSTRACT: Growing dementia prevalence underscores the need for efficient screening methods, but lengthy digital assessments often cause fatigue among older adults. To address this, we developed and validated the Digital Assessment of Cognitive Impairment (DACI), a brief mobile application designed to accurately identify cognitive impairment (CI). Initially, 304 older adults (272 healthy, 32 cognitively impaired) completed both a pencil-and-paper Cognitive Impairment Screening Test (CIST) and a full-length DACI. The best-performing CatBoost model achieved an area under the curve (AUC) of 0.813, with sensitivity of 0.903, requiring an average completion time of 321 s. Subsequent feature selection identified two essential subtests for a compact DACI. This compact version was then validated with an addi

SUBMITTER: Ko HJ 

PROVIDER: S-EPMC12365245 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature