Table 3.

Prevalence of dementia (% of the total group of interest ascertained with dementia) by education status, prevalence of dementia by residency (rural or urban), and degree of dementia (% of the total ascertained cases): mild, moderate, or severe

Group	El Tallawy et al16	El Tallawy et al18	Khedr et al19
Educated	0.6	0.79	2.25
Illiterate	6.35	3.6	10.12
Urban	1.87	–	7.1
Rural	3.25	–	3.27
Mild	53.7	33.3	–
Moderate	38.4	84.3	–
Severe	7.9	18.4	–