The objective of this study was to describe the state of the scene of senile dementia in an intra-institutional environment in the city of Lubumbashi. We conducted a descriptive cross-sectional study, over a period of three months, from February 20 to May 20, 2016. The study population is made up of the residents of the 9 retirement institutions for senior citizens (old people’s home) which counts the city of Lubumbashi. Participation was voluntary with informed consent duly signed by the patient. The probable cases of dementia were detected through the CSI-D and the 5-word test. A predominance of Alzheimer’s was noted (76.92%) and most of them were widowed (69.23%). The mean age of the dementia population was 76.46 ± 9.87 years, while (69.23%) of the patients were out of school. In (23.08%) cases demented patients were male, with a sex ratio of 0.3. Nearly (46.15%) of the demented were drinking. It appears that (69.23%) of the dementias were hypertensive. There are associations between different risk factors and the presence of dementias. Alcohol with an OR (Odd Ratio) = 0.08 (95% CI [0.01 - 0.72], p < 0.05). In our environment, our results indicate a different situation with a much higher prevalence.
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