The profile and impact of probable dementia in a sub-Saharan African community: Results from the Ibadan Study of Aging
- PMID: 16938510
- PMCID: PMC2820716
- DOI: 10.1016/j.jpsychores.2006.07.016
The profile and impact of probable dementia in a sub-Saharan African community: Results from the Ibadan Study of Aging
Abstract
Objective: This study aimed to determine the profile of dementia in a sub-Saharan Africa country and assess its effects on role functioning and quality of life.
Methods: Using a multistage, stratified, clustered sampling of households in the Yoruba-speaking areas of Nigeria, representing 22% of the national population, 2152 persons aged 65 years and above were studied. Probable dementia was evaluated using a validated cognitive test - the 10-Word Delay Recall Test. Activities of daily living (ADL), instrumental ADL, and quality of life were also assessed.
Results: The prevalence of probable dementia in this sample was 10.1% (95% confidence interval, 8.6-11.8). Female sex and increasing age were risk factors. Also, lifetime history of alcohol use doubles the risk. Affected persons had relatively preserved functioning and quality of life.
Conclusion: The findings suggest that the diagnosis of dementia may be downwardly biased in this culture due to relatively preserved levels of social and functional roles.
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