Table 3.

Current (last month) Psychiatric Comorbidities in Clinically Referred Populations of Youth with ASD

	ASD Clinic Referred ASD Youth (N=143)	Psychiatry Clinic Referred ASD Youth (N=217)	Test Statistic	p-value	Holm’s Adjusted Alpha
	N (%)	N (%)
# of Psychiatric disorders	4.0 ±2.3	4.9 ±2.4	z=−3.29	0.001	0.002
Language Disorder	61 (44)	83 (38)	2(1)=1.24	0.26	0.005
Tic Disorders
Tic disorder (Motor or Vocal)	18 (13)	39 (18)	2(1)=1.73	0.19	0.005
Tourette’s disorder	14 (10)	33 (15)	2(1)=2.09	0.15	0.004
Disruptive Behavior Disorders
Attention-deficit/hyperactivity disorder	96 (68)	167 (77)	2(1)=3.45	0.06	0.003
Oppositional defiant disorder	68 (49)	150 (69)	2(1)=15.12	<0.001	0.002
Conduct disorder	7 (5)	27 (12)	2(1)=5.62	0.02	0.002
Major Mood Disorders
Major depressive disorder	41 (29)	85 (39)	2(1)=4.31	0.04	0.003
Bipolar I disorder	21 (15)	54 (25)	2(1)=5.44	0.02	0.003
Psychosis	7 (5)	28 (13)	2(1)=6.01	0.01	0.002
Anxiety Disorders
Multiple anxiety disorders (≥2)	58 (41)	89 (41)	2(1)=0.007	0.93	0.025
Specific phobia	47 (34)	56 (26)	2(1)=2.55	0.11	0.004
Separation anxiety disorder	25 (18)	40 (19)	2(1)=0.04	0.85	0.012
Agoraphobia	29 (21)	66 (30)	2(1)=4.25	0.04	0.003
Generalized anxiety disorder	36 (26)	46 (30)	2(1)=0.42	0.52	0.006
Social phobia	31 (22)	54 (25)	2(1)=0.34	0.56	0.007
Obsessive-compulsive disorder	24 (18)	45 (21)	2(1)=0.62	0.43	0.006
Panic disorder	2 (1)	9 (4)	2(1)=2.05	0.15	0.004
Post traumatic stress disorder	2 (1)	2 (1)	2(1)=0.18	0.67	0.01
Substance Use Disorders*
Substance use disorders	1 (2)	1 (1)	2(1)=0.09	0.77	0.012
Cigarette Smoking	0 (0)	3 (4)	2(1)=2.63	0.10	0.003
Elimination Disorders
Enuresis	28 (20)	44 (20)	2(1)=0.003	0.96	0.05
Encopresis	14 (10)	26 (12)	2(1)=0.33	0.57	0.008

Versus ASD clinic referred youth *p<0.05, **p<0.01, ***p<0.001

^*Limited to children 10 years of age and older