الفهرس 
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Abstract
Dementias pose a major and growing clinical and public health challenge as we enter the 21 sl century. Today, dementia is considered one of the major social burdens in developing countries and accounts, worldwide, for 11.2% years lived with incapacity, in people aged 60 or older, a percentage higher than that of strokes, cardiovascular disease and cancers.
The aim of our study was to determine the prevalence and risk factors of senile dementia in EI-Burgaia village, EI-Minia district.
This is a cros~ctional community based study conducted III EIIBurgaia village, EI-Minia district.
Data were collected through structured interview questionnaire including socio-demographic data, occupational, medical history, pharmacological drug use and lifestyle habits (tobacco smoking, alcohol consumption).
The examination was performed using a door-to-door screening examination to discriminate between individuals with or without possible cognitive impainnent,
Participants were screened by trained interviewers using the Arabic version of the MMSE, which is a brief 30-point questionnaire test that is used to screm for cognitive impairment.
The prevalence of senile dementia in this study was 3.6% among the studied elderly and the mean ofMMSE score among the demented persons was 13.6±2.5
Most of the demented persons were illiterates (92.5%). ~nd 85% of the diseased persons were non worker compared to 69.7% of the nonnal elderly people.
There is a significant relation between pervious exposures to paints and oils and the development of senile dementia as 10% of the diseased persons versus 3.4% and 1.3% ofnonnal persons had exposed to them.
There is a significant relation between pervIOus exposures to general
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anesthesia and the number of its exposure and the development of senile dementia
There is statistical significant relation between diabetes Mellitus and senile dementia, as 80% of the diseased persons had diabetes compared to 50.6% of the normal elderly persons.
There is also a statistical significant relation between hypertension and senile
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dementia; as 87.5% of the diseased persons had hypertension compared to 55% of the
normal persons.
There is a significant relation between Parkinsonism, stroke, and mlgrame with senile dementia. As the percent of Parkinsonism, stoke, and migraine was 5%, 15%, and 20% among diseased persons compared to 0.9%, 1.9%, and 7.9% among the normal elderly people.
There is a significant relation between senile dementia and depression. The percent of depression among the demented persons was 20%, compared to 2.1 % among the normal elderly persons.