Individual Study / EPIDEMCA

Epidemiology of Dementia in Central Africa

Epidemiology of Dementia in Central Africa

Initiatives -
1. To estimate and compare the prevalence of dementia and related syndromes in urban and rural areas in Central Africa (Central African Republic and Republic of Congo), and to study the neuropsychological profiles of demented and non-demented subjects. 2. To investigate factors associated with dementia and cognitive disorders: sociodemographic, environmental factors including vascular, nutritional, lifestyle and biological factors. 3. To determine if genetic variations can modify the risk of dementia in African populations. 4. To create a biobank from native elderly Africans in order to carry out further biological, genotypic and phenotypic researches in the future. *Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.*
Start Year
End Year
French National Research Agency (ANR-09-MNPS-009-01)


Investigators Contacts
  • Dr. Prof. Pierre-Marie Preux
    Institute of Neuroepidemiology and Tropical Neurology


Study design
Patients' cohort
Follow Up
Baseline and 2-year follow-up.

Marker Paper

Guerchet M, Mbelesso P, Ndamba-Bandzouzi B et al. Epidemiology of dementia in Central Africa (EPIDEMCA): protocol for a multicentre population-based study in rural and urban areas of the Central African Republic and the Republic of Congo. Springerplus. 2014 Jul 3;3:338. doi: 10.1186/2193-1801-3-338


Sources of Recruitment
  • Individuals

Number of participants

Number of participants
Number of participants with biosamples
Supplementary Information
Over 65 years old


Availability of data and biosamples


Availability of access information

By contacting the study representative