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Published on: September 20, 2018
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Clinical Manifestations
Rafi Haddad1,2, Rachel Ben-Hayun2,3, Andjelika Milicic4
1Global Brain Health Institute, University of California, San Francisco, San Francisco, CA, USA.
Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025
Summary
Arabs in Israel reported more cognitive symptoms than Jews, particularly in executive function. Increased physical activity was linked to fewer cognitive complaints, highlighting exercise
Area of Science:
- Neurology
- Public Health
- Cognitive Science
Background:
- Arabs in Israel face higher mortality from cerebrovascular disease and increased prevalence of vascular cognitive impairment compared to Jews.
- This study addresses cognitive disparities between community-dwelling Arabs and Jews with similar cerebrovascular risk factors (CVRF).
Purpose of the Study:
- To evaluate cognitive differences between Arab and Jewish populations in Israel.
- To investigate the relationship between cerebrovascular risk factors, cognitive symptoms, and performance on cognitive assessments.
- To explore the impact of physical activity on cognitive health within these populations.
Main Methods:
- 115 participants (59 Arabs, 56 Jews) without known cognitive impairment but with at least one CVRF were enrolled.
- Participants completed a cognitive symptoms questionnaire and underwent the Montreal Cognitive Assessment (MoCA) and the Tablet-based Cognitive Assessment Tool (TabCAT) Brain Health Assessment (BHA) battery.
- Clinical characteristics and physical activity levels were analyzed.
Main Results:
- A higher proportion of Arabs (68%) reported cognitive symptoms compared to Jews (32%) (p=0.007).
- Participants with cognitive symptoms performed worse on an executive function task (Match) (p=0.002).
- Greater physical activity was associated with fewer reported cognitive symptoms (p=0.01).
Conclusions:
- The majority of individuals reporting cognitive symptoms in this community screening were Arabs.
- Poorer executive function in those with cognitive symptoms suggests potential underdiagnosed cognitive disorders.
- Increased physical activity is crucial for supporting brain health and reducing cognitive complaints.
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