The usability and reliability of a smartphone application for monitoring future dementia risk in ageing UK adults

The rising number of dementia diagnoses and imminent adoption of disease-modifying treatments necessitate innovative approaches to identify individuals at risk, monitor disease course and intervene non-pharmacologically earlier in the disease course. Digital assessments of dementia risk and cognitiv...

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Bibliographic Details
Published in:British journal of psychiatry 2024-06, Vol.224 (6), p.245-251
Main Authors: Reid, Graham, Vassilev, Philip, Irving, Jessica, Ojakäär, Triin, Jacobson, Liron, Lawrence, Erin G., Barnett, Jenny, Tapparel, Malika, Koychev, Ivan
Format: Article
Language:English
Subjects:
Access
Affordability
Age differences
Aged
Aged, 80 and over
Aging
Alzheimer's disease
Clinical medicine
Clinical research
Cognition & reasoning
Cognitive ability
Cognitive functioning
Dementia
Dementia - diagnosis
Dementia - epidemiology
Dementia disorders
Disease prevention
Education
Executive function
FDA approval
Female
Gender
Higher education
Humans
Intervention
Life Style
Lifestyles
Male
Memory
Middle Aged
Mobile Applications
Neuropsychiatry
Neuropsychological Tests
Normality
Older people
Original Article
Questionnaires
Reliability
Reproducibility of Results
Risk Assessment
Risk Factors
Self report
Semantics
Smartphone
Smartphones
Test scores
Tracking
United Kingdom - epidemiology
Usability
Verbal ability
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Summary:The rising number of dementia diagnoses and imminent adoption of disease-modifying treatments necessitate innovative approaches to identify individuals at risk, monitor disease course and intervene non-pharmacologically earlier in the disease course. Digital assessments of dementia risk and cognitive function have the potential to outperform traditional in-person assessments in terms of their affordability, accuracy and longitudinal tracking abilities. However, their accessibility and reliability in older adults is unclear. To evaluate the usability and reliability of a smartphone assessment of lifestyle and cognitive factors relevant to dementia risk in a group of UK-based older adults. Cognitively healthy adults ( = 756) recruited through the Dementias Platform UK Great Minds volunteer register completed three assessments of cognitive function and dementia risk over a 3-month period and provided usability feedback on the Five Lives smartphone application (app). We evaluated cognitive test scores for age, gender and higher education effects, normality distributions, test-retest reliability and their relationship with participants' lifestyle dementia risk factors. Participants found the app 'easy to use', 'quick to complete' and 'enjoyable'. The cognitive tests showed normal or near-to-normal distributions, variable test-retest reliabilities and age-related effects. Only tests of verbal ability showed gender and education effects. The cognitive tests did not correlate with lifestyle dementia risk scores. The Five Lives assessment demonstrates high usability and reliability among older adults. These findings highlight the potential of digital assessments in dementia research and clinical practice, enabling improved accessibility and better monitoring of cognitive health on a larger scale than traditional in-person assessments.
ISSN:0007-1250
1472-1465
DOI:10.1192/bjp.2024.18