An estimate of the prevalence of dementia in Africa

A systematic analysis

Dados Bibliográficos

ID19552138
AutoresRhiannon George-Carey, Rhiannon George‐Carey (0009-0009-7681-9905, University of Edinburgh), Davies Adeloye (0000-0003-1316-8139, University of Edinburgh), Kit Y Chan (0000-0002-3465-8383, Peking University), Abigail Paul (University of Edinburgh), Ivana Kolcic (0000-0001-7918-6052, University of Split), Harry Campbell (0000-0002-6169-6262, University of Edinburgh), Igor Rudan (0000-0001-6993-6884, University of Edinburgh, autor correspondente)
Ano2012
Volume2
Fascículo2
Páginas020401-020401
Data de publicação2012-12-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoJournal of Global Health (JOURNAL)
Identificadores do periódicoISSN: 2047-2978 • E-ISSN: 2047-2986
EditoraInternational Global Health Society (PUBLISHER)
DOI10.7189/jogh.02.020401
PMID23289076
PMCIDPMC3529309
OpenAlexW2167330193
IdiomaEN
Citações recebidas9
Referências citadas24

BACKGROUND: The burden of non-communicable diseases is growing, particularly in developing countries. The greatest economic burden is due to dementia, the prevalence of which is rising with increasing longevity. In Africa, where the rate of increase of elderly persons is the fastest in the world, dementia is normally dismissed as a part of normal ageing. The lack of awareness means that many patients are suffering undiagnosed. This review aims to assess the information on the prevalence of dementia in Africa in order to estimate the current burden. METHODS: A parallel search of Medline, EMBASE and Global Health limited to post-1980 found only 10 relevant studies. Data on prevalence and risk factors were extracted and analysed. We modelled the available information and used the UN population figures for Africa to determine the age-specific and overall burden of dementia. RESULTS: The overall prevalence of dementia in adults older than 50 years in Africa was estimated to be about 2.4%, which translates to 2.76 million people living with a disease in 2010. About 2.10 millions of them live in Sub-Saharan Africa. Prevalence was the highest among females aged 80 and over (19.7%) and there was little variation between regions. Alzheimer disease was the most prevalent cause of dementia (57.1%) followed by vascular dementia (26.9%). The main risk factors were increasing age, female sex and cardiovascular disease. CONCLUSIONS: Information on dementia prevalence in Africa is very limited. Further research will not only provide a more reliable estimate of prevalence, and consequently the burden of disease, but will also raise awareness of the problem. This is critical in promoting help-seeking behaviour and generating the political commitment to make dementia a public health priority in Africa

Burden of disease · Dementia · Disease · Disease burden · Environmental health · MEDLINE · Pathology · Population · Prevalence · Vascular dementia · Biological Research and Disease Studies · Dementia and Cognitive Impairment Research · Demography · Medical Case Reports and Studies · Medicine · Gerontology