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Interethnic differences in dementia epidemiology: global and Asia-Pacific perspectives
N Venketasubramanian1, S Sahadevan, E H Kua
1Division of Neurology, University Medicine Cluster, and Department of Epidemiology and Public Health, National University Health System, National University of Singapore, 1E Kent Ridge Road, Singapore. ramani_nv@nuhs.edu.sg
Dementia and Geriatric Cognitive Disorders
|January 22, 2011
Summary
Dementia
Area of Science:
- Epidemiology
- Global Health
- Neuroscience
Background:
- Dementia burden is increasing globally, especially in developing nations within the Asia-Pacific region.
- Geographic variations in dementia prevalence and incidence are increasingly recognized, challenging earlier assumptions.
- Studies indicate differences in dementia rates among various ethnic and migrant populations worldwide.
Purpose of the Study:
- To investigate interethnic differences in dementia epidemiology within the Asia-Pacific region.
- To examine the prevalence of dementia among ethnic Chinese, Malays, and Indians in Singapore.
- To explore potential disparities in the types of dementia (Alzheimer's disease vs. vascular dementia) across ethnic groups.
Main Methods:
- Review of existing epidemiological studies on dementia.
- Analysis of standardized dementia prevalence rates across different ethnic groups in Singapore.
- Comparison of Alzheimer's disease and vascular dementia frequencies between ethnic cohorts.
Main Results:
- Singaporean studies revealed lower standardized dementia prevalence in ethnic Chinese compared to Malays and Indians.
- These differences persisted independently of vascular risk factors.
- Conflicting data exists regarding the relative frequencies of Alzheimer's disease and vascular dementia among these ethnic groups.
Conclusions:
- Significant interethnic variations in dementia epidemiology exist within the Asia-Pacific region.
- Further research is crucial to understand these disparities, considering potential cultural confounders.
- Addressing cultural factors is essential for accurate dementia epidemiology and targeted interventions.
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