Table 1.

Demographic and diagnostic characteristics for male and female participants with autism spectrum disorder.

Measure	Females			Males
							Statsa
Matched with tolerance	M	SD	n	M	SD	n
Age	12.17	2.74	79	12.65	2.43	158	p=.17
Full Scale IQ	106.68	20.37	79	106.74	18.95	158	p=.98
Other Measures	Mb	SD	n	Mb	SD	n
ADOS Social + Comm Total	11.71	4.33	58	11.82	5.00	63	p=.45
ADOS Restricted Interests	2.29	1.71	58	1.98	1.65	62	p=.32
ADOS-2 Social Affect Total	11.36	3.20	11	11.30	4.21	50	p=.53
ADOS-2 RRB Total	3.91	2.02	11	3.36	1.89	50	p=.64
ADI-R Social	16.67	6.65	69	17.92	5.75	146	p=.50
ADI-R Verbal Communication	13.99	5.04	69	14.98	4.45	146	p=.25
ADI-R RRBI Total	5.13	2.87	69	5.72	2.69	146	p=.39
ADHD Inattentive (yes:no)c	24:17		41	49:58		107	p=.17
ADHD Hyperactive (yes:no)	12:29		41	27:80		107	p=.62
Race			79			158	p=.66
Unknown (not in chi sq.)			10			4
Asian			3			10
African American			10			15
White			52			117
Other			4			12
Mother’s Level of Ed.			55			158	p=.84
Graduate			24			68
College			21			64
Partial College/technical			9			18
High School			1			6
Partial High School			0			1
Junior High School			0			1

Note: ADOS: Autism Diagnostic Observation Schedule, Comm: Communication, RRB: Restricted and Repetitive Behavior; ADI-R: Autism Diagnostic Interview-Revised, RRBI: Repetitive, Restricted Behaviors and Interests; ADHD: Attention Deficit Hyperactivity Disorder; Ed: Education

^aIndependent sample t-tests were conducted for Age and FSIQ comparisons. Pearson Chi-Square analyses were conducted for ADOS, ADI-R, ADHD, Race, and Mother’s Education comparisons.

^bMeans and standard deviations are reported here for informational purposes. The frequencies of each unique score, compared between males and females, were used for the chi-square analysis.

^cYes:no indicates ratio of meeting criteria for ADHD (inattentive or hyperactive):not meeting criteria. Six or more symptoms on the 18-item scale are necessary to meet criteria.