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Table 1 Characteristics of ADHD and normal children

From: Long-term effects of stimulants on neurocognitive performance of Taiwanese children with attention-deficit/hyperactivity disorder

 

ADHD (N = 171)

Control (N = 47)

p value1

 

Mean ± SD or %

Mean ± SD or %

 

Age

8.7 ± 1.8

8.8 ± 2.1

0.654

 

Male

81.9%

51.1%

<0.001

***

BMI

18.5 ± 3.7

18.8 ± 3.3

0.472

 

ADHDRS_total

29.1 ± 8.2

9.8 ± 6.5

<0.001

***

ADHDRS_inattention

16.5 ± 4.2

6.7 ± 2.9

<0.001

***

ADHDRS_hyperactivity

12.8 ± 5.1

3.2 ± 4.0

<0.001

***

CGI –S

4.5 ± 0.8

1.0 ± 0.8

<0.001

***

WISC-III

    

Information

9.3 ± 2.9

10.3 ± 2.7

0.182

 

Similarities

9.8 ± 3.3

12.4 ± 2.5

0.003

**

Arithmetic

10.2 ± 3.1

11.4 ± 1.8

0.121

 

Vocabulary

9.6 ± 3.1

11.3 ± 2.5

0.032

*

Comprehension

9.7 ± 2.8

11.0 ± 2.4

0.087

 

Picture completion

9.7 ± 3.0

10.9 ± 2.0

0.054

 

Coding

9.1 ± 3.6

11.1 ± 3.6

0.033

*

Picture arrangement

9.7 ± 2.9

11.7 ± 2.9

0.009

 

Block design

10.5 ± 3.5

11.4 ± 2.3

0.158

 

Object assembly

9.2 ± 3.1

9.9 ± 3.3

0.407

 

Digit span

9.5 ± 3.0

-

  

Symbol search

10.5 ± 3.1

-

  

FIQ

97.6 ± 14.3

106.6 ± 9.5

0.014

*

VIQ

98.2 ± 13.9

107.0 ± 11.0

0.020

*

PIQ

98.2 ± 15.5

104.9 ± 9.6

0.103

 

VCI

99.0 ± 13.6

107.8 ± 11.6

0.017

*

POI

98.6 ± 14.4

105.4 ± 10.7

0.078

 

FDI

98.7 ± 15.0

   

PSI

99.1 ± 15.5

   
  1. 1two sample t test, *: <0.05, **: <0.01 and ***: <0.001.
  2. FIQ = full intelligence quotient, VIQ = verbal intelligence quotient, PIQ = performance intelligence quotient, VCI = verbal comprehension index, POI = perceptual organization index, FDI = freedom from distractibility index, PSI = processing speed index.