Table 1. Demographic and clinical characteristics of the patients enrolled in the study.

	Patients
	n = 274	%
Gender (male/female)	241/33	88/12
Mean age (± SD)	7.3±3.6
ASD diagnosis
Autism	182	66
Asperger syndrome	18	7
PDD-nos	74	27
Associated ID	139	51
Mild to moderate ID	92	34
Severe to profound ID	47	17

ID: intellectual disability; PDD-nos: Pervasive Developmental Disorder - Not Otherwise Specified.