Clinical Characteristics of Autism Spectrum Disorder in Israel: Impact of Ethnic and Social Diversities

Table 3

Prevalence of concurrent disorders in the study patients. More Jewish patients suffering from epilepsy and anxiety and more Arab patients suffering from mental retardation and behavioral difficulties ( < 0.05 statistical significance; see text for details).

Concurrent disorder	Total number (%)	Jews number (%)	Arabs number (%)	values
Mental retardation	21 (10.5)	11 (8.5)	10 (14)	0.012
Sleep disturbance	81 (40.5)	50 (38.7)	31 (43.6)	0.299
Epilepsy	15 (7.5)	12 (9.3)	3 (4.2)	0.001
Anxiety	59 (29.5)	47 (36.4)	12 (16.9)	0.003
Behavioral difficulties	49 (24)	25 (19.4)	23 (32.4)	0.031