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Vol. 30, No. 3, 2010
Issue release date: October 2010
Dement Geriatr Cogn Disord 2010;30:261–268

Prevalence of Dementia in Elderly Living in Two Cities of Central Africa: The EDAC Survey

Guerchet M. · M’belesso P. · Mouanga A.M. · Bandzouzi B. · Tabo A. · Houinato D.S. · Paraïso M.N. · Cowppli-Bony P. · Nubukpo P. · Aboyans V. · Clément J.-P. · Dartigues J.-F. · Preux P.-M.
aIFR 145 GEIST, Institut d’Epidémiologie Neurologique et de Neurologie Tropicale, EA 3174 NeuroEpidémiologie Tropicale et Comparée, Université de Limoges, bCH Esquirol, Centre Mémoire de Ressources et de Recherche, cService de Chirurgie Thoracique Cardiovasculaire et Angiologie, et dService de l’Information Médicale et de l’Evaluation, Unité Fonctionnelle de Recherche Clinique et Biostatistique, CHU Limoges, Limoges, et eUniversité Victor Segalen Bordeaux II, INSERM U897, Bordeaux, France; fService de Neurologie, Hôpital de l’Amitié, et gService de Psychiatrie, Centre National Hospitalier de Bangui, Bangui, République Centrafricaine; hService de Psychiatrie et iService de Neurologie, CHU de Brazzaville, Brazzaville, Congo; jUnité d’Enseignement et de Recherche de Neurologie, Faculté des Sciences de la Santé, Université d’Abomey Calavi, et kInstitut Régional de Santé Publique, Ouidah, Cotonou, Bénin

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Background: Data on dementia from low- and middle-income countries are still necessary to quantify the burden of this condition. This multicenter cross-sectional study aimed at estimating the prevalence of dementia in 2 large cities of Central Africa. Methods: General population door-to-door surveys were conducted in the districts of Bangui (Republic of Central Africa) and Brazzaville (Congo) in elderly aged ≧65 years. The subjects were screened with the Community Screening Interview for Dementia and the Five-Words Test. Diagnosis of dementia was made according to the DSM-IV criteria and to the clinical criteria proposed by the NINCDS-ADRDA for Alzheimer’s disease. Results: We enrolled 496 subjects in Bangui and 520 in Brazzaville. The prevalence of dementia was estimated at 8.1% (95% CI = 5.8–10.8) in Bangui and 6.7% (95% CI = 4.7–9.2) in Brazzaville. Conclusion: The prevalence of dementia in urban areas of Central Africa is close to those observed in high-income countries.

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