Table 2.

Level of mental retardation among the patients in the study

Level of mental retardation	IQ	Number of patients	%
Borderline	70–79	12	35.3
Mild	50–69	5	14.7
Moderate	35–49	3	8.8
Severe	20–34	–	–
Profound	<20	–	–
Normal	≥80	14	41.2