Table I.

Age and Behavior Distribution of Children With Autism, ASD, Delay, and Typical Development, n =271

	n	Age (mo)	Range	Male	Female	ABC	Range
Autism	116	42.8±9.8	25–64	106	10	56.3±23.6	15–126
Early onset	60	41.8±9.9	25–64	56	4	53.8±23.1	16–126
Regressive	56	43.7±9.6	27–62	50	6	59.0±24.2	15–121
ASD	27	39.8±9.4	27–62	22	5	45.0±31.3	9–120
Delayed	32	44.1±10.6	24–60	19	13	30.7±30.8	1–106
Typical	96	39.8±8.2	26–59	72	24	7.3±9.8	0–45

ASD, autism spectrum disorder; ABC, Aberrant Behavior Checklist.