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Table 1 Characteristics of participants with ASD, ADHD, ASD + ADHD and control subjects

From: The neuroanatomical substrates of autism and ADHD and their link to putative genomic underpinnings

Variable

ASD only (n = 170)

ADHD only (n = 25)

ASD + ADHD (n = 142)

TD (n = 196)

Analysis

N

%

N

%

N

%

N

%

Χ2

df

p

Sex

        

7.18

3

0.07

 Male

112

65.9

14

56

107

75.4

124

63.3

   

 Female

58

34.1

11

44

35

24.6

72

36.7

   
 

Mean

SD

Mean

SD

Mean

SD

Mean

SD

F

df

p

Age (years)

18.45

5.6

17.80

4.9

16.38

5.30

17.19

5.9

3.812

3

0.01**

FSIQ

101.98

18.8

79.8

21.1

94.93

20.8

108.44

14.1

28.29

3

< 2e−16***

Mean CT (mm)

2.67

0.12

2.67

0.13

2.69

0.14

2.68

0.11

1.07

3

0.36

Total SA (m2)

0.21

0.26

0.21

0.29

0.23

0.23

0.23

0.23

5.734

3

< 0.001***

  1. Ages range from 7 to 30 years in the ASD only group, from 10 to 30 years in the ADHD only group, from 7 to 29 years in the ASD + ADHD group and from 6 to 30 years in the typical developing group. Full-scale IQ ranged from 58 to 148 in the ASD only group, from 50 to 119 in the ADHD only group, from 40 to 142 in the ASD × ADHD group and from 69 to 142 in the typical developing group