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Table 1 Descriptive data for ADHD and ASD samples

From: Parent-reported and clinician-observed autism spectrum disorder (ASD) symptoms in children with attention deficit/hyperactivity disorder (ADHD): implications for practice under DSM-5

 

ADHD

ASD

   
 

(n = 48)

(n = 164)

   
 

Mean (SD)

Mean (SD)

t

df

p value

Age (years)

9 (4)

9 (3)

0.01

210

0.99

VIQa

106 (16)

103 (18)

0.75

208

0.45

NVIQa

105 (14)

104 (17)

0.21

207

0.83

 

n (%)

n (%)

χ 2

df

p value

Males

38 (79)

138 (84)

0.65

1

0.42

ADOS Mod 3

41 (85)

145 (88)

0.31

1

0.58

Site

     

 UMACC

29 (60)

70 (43)

26.90

2

<0.001

 UCDDC

9 (19)

88 (54)

 CADB

10 (21)

6 (4)

  1. ADHD attention deficit/hyperactivity disorder, ASD autism spectrum disorder, CADB Center for Autism and the Developing Brain in New York, df degrees of freedom, UCDDC University of Chicago Developmental Disorders Clinic, UMACC University of Michigan Autism and Communications Disorders Center
  2. aTwo ADHD participants were missing VIQ information and three additional ADHD participants were missing NVIQ information