[Comparison of several screening instruments for dementia]

Area of Science:

• Gerontology
• Neurology
• Psychiatry

Background:

• Dementia diagnosis necessitates evaluating both cognitive and functional deficits.
• Standardized assessment tools are crucial for accurate dementia screening in diverse populations.

Purpose of the Study:

• To investigate the correlation between cognitive and functional assessments in a large elderly cohort.
• To evaluate the suitability of different assessment tools for community-based dementia screening.
• To identify factors influencing cognitive and functional test performance.

Main Methods:

• Utilized Mini-Mental State Examination (MMSE), Blessed Dementia Scale (BDS), and Hasegawa Dementia Scale (HDS) for cognitive assessment.
• Employed Activity of Daily Living (ADL) and Pfeffer's Social Function Questionnaire (POD) for functional assessment.
• Analyzed data from a survey of 5055 elderly individuals.

Main Results:

• Significant correlations were observed between cognitive and functional assessment scores.
• Cognitive test scores (MMSE, BDS, HDS) were strongly associated with educational attainment, indicating a need for education-dependent cutoff points.
• The POD demonstrated greater suitability for community surveys compared to other functional scales.

Conclusions:

• Cognitive and functional assessments are interconnected and vital for dementia diagnosis.
• Educational level significantly impacts cognitive assessment results, requiring adjusted diagnostic thresholds.
• The Pfeffer's Social Function Questionnaire (POD) is recommended for functional assessment in community-based dementia screening programs.