It is not evident through literature whether the prevalence of dementia is pronounced in some specific geographical areas. However, a report by the Africa Mental Health Research and Training Foundation revealed a high rate of people with mild to moderate cognitive impairment in Makueni County in Kenya. Among all people with mental health problems, the rate of cognitive impairment using Mini-Mental State Exam (MMSE) was estimated to be 16%. This led to dementia (manifested as cognitive impairment) being ranked third, after depression and drug and substance abuse (Mutiso et al., 2016). This is the only study in Kenya that has been conducted to estimate prevalent rates on dementia.

References:

Mutiso, V., Pike, K. M., Ndetei, D., Musau, A., Nandoya’, E., Musyimi’, C., … Wambua, R. (2016). Multi-sectoral Stakeholder TEAM Approach to Scale-Up Community Mental Health in Kenya: Building on Locally Generated Evidence and Lessons Learnt (TEAM). Nairobi, Kenya. https://www.mhinnovation.net/sites/default/files/downloads/innovation/reports/TEAM%20Project%20Report%20to%20County_Final_31_01_17.pdf