Longitudinal remote sleep and cognitive research in older adults with mild cognitive impairment and dementia: a prospective feasibility cohort study
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INTRODUCTION
We investigated the feasibility of remote longitudinal research using wearable devices and smartphone applications to record sleep and cognition in older adults with mild cognitive impairment (MCI) or dementia.
METHODS
Older adults with MCI or dementia due to Alzheimer’s disease (AD) or Lewy body disease (LBD) and cognitively healthy participants completed at-home sleep and circadian monitoring (digital sleep diaries, actigraphy, wearable sleep electroencephalography (EEG), saliva samples) and digital cognitive assessments for 8 weeks. Feasibility outcomes included recruitment, retention, and data completeness.
RESULTS
41 participants consented (10 AD, 11 LBD, and 20 controls) and 40 completed the 8-week study. Data completeness for sleep EEG was 91% and ranged from 79% to 97% for all remote tasks. 12/40 (30%) participants reported receiving external support with completing study tasks.
DISCUSSION
Longitudinal multimodal sleep and cognitive profiling using novel technology is feasible in older adults with MCI and dementia and healthy older adults.
