Prevalence of dementia and factors associated with dementia in rural Bangladesh: data from a cross-sectional, population-based study

Palmer, Katie, Kabir, Zarina N., Ahmed, Tanvir, Hamadani, Jena D., Cornelius, Christel, Kivipelto, Miia and Wahlin, Ake (2014) Prevalence of dementia and factors associated with dementia in rural Bangladesh: data from a cross-sectional, population-based study. International Psychogeriatrics, 26 11: 1905-1915. doi:10.1017/S1041610214001392


Author Palmer, Katie
Kabir, Zarina N.
Ahmed, Tanvir
Hamadani, Jena D.
Cornelius, Christel
Kivipelto, Miia
Wahlin, Ake
Title Prevalence of dementia and factors associated with dementia in rural Bangladesh: data from a cross-sectional, population-based study
Journal name International Psychogeriatrics   Check publisher's open access policy
ISSN 1041-6102
1741-203X
Publication date 2014-11
Year available 2014
Sub-type Article (original research)
DOI 10.1017/S1041610214001392
Open Access Status
Volume 26
Issue 11
Start page 1905
End page 1915
Total pages 11
Place of publication Cambridge, United Kingdom
Publisher Cambridge University Press
Collection year 2015
Language eng
Formatted abstract
Background: There are currently no published reports of dementia prevalence or factors associated with dementia occurrence in Bangladesh. The aims are to report the prevalence of definite and questionable dementia in rural Bangladesh, and examine factors potentially associated with dementia occurrence, including sociodemographic, clinical, social, and nutritional factors.

Methods: We used data from a population-based, cross-sectional study from Matlab, in rural Bangladesh, on 471 persons aged 60+ years. Participants underwent a clinical examination including diagnosis of somatic disorders, and a structured interview including questions about sociodemographic and social factors. Nutritional status was measured with the Mini Nutritional Assessment, and blood tests were conducted to assess a range of nutritional and clinical aspects. Age- and sex-specific dementia prevalence was calculated. Crude and adjusted logistic regression was used to examine associations between dementia and clinical, social, and nutritional factors. Dementia was diagnosed using a two-step procedure by physicians according to DSM-IV criteria.

Results: The prevalence of questionable dementia was 11.5% and definite dementia was 3.6%. Dementia prevalence increased with increasing years of age (adjusted OR: 1.04; 95% CI = 1.002-1.1) and decreased with more years of education (adjusted OR: 0.8; 95% CI = 0.6-0.99). Being malnourished increased the odds of dementia almost six-fold (adjusted OR: 5.9; 95% CI = 1.3-26.3), while frequent participation in social activities was associated with a decreased odds (adjusted OR: 0.5; 95% CI = 0.2-0.9).

Conclusions: The prevalence of dementia in rural Bangladesh is similar to other countries in the South Asia region, but lower than reports from other world regions. Malnutrition is strongly associated with dementia occurrence, and is a relevant area for future research within low-income countries.
Keyword Dementia
Low-income country
Bangladesh
Alzheimer
Cognition
Aging
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Medicine Publications
 
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