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Table 1 Demographic data and ADHD symptoms measurements for ADHD patients with DSM-IV subtypes at baseline

From: Clinical symptoms and performance on the continuous performance test in children with attention deficit hyperactivity disorder between subtypes: a natural follow-up study for 6 months

 

Inattentive

type

(N = 15)

Hyperactive-

impulsive type

(N = 11)

Combined

type

(N = 24)

Test

statistic

Pvalue

Gender

n(%)

n(%)

n(%)

 

0.282

   Male

10 (66.7)

9 (81.8)

21 (87.5)

2.53

 

   Female

5 (33.3)

2 (18.2)

3 (12.5)

  
 

Mean(SD)

Mean(SD)

Mean(SD)

  

Age (years)

8.1 (1.8)

7.5 (1.6)

7.3 (1.5)

1.13

0.332

Height (cm)

130.5 (10.9)

127.8 (9.7)

126.5 (8.4)

0.82

0.445

Weight (kg)

29.5 (7.5)

27.7 (7.0)

26.7 (6.2)

0.77

0.467

CBCL

     

   Hyperactive

69.0 (12.4)

61.6 (8.2)

66.7 (8.3)

1.94

0.155

   Aggression

63.3 (10.3)

64.6 (7.4)

59.3 (8.6)

1.69

0.196

   Delinquency

65. 7(11.9)

61.1 (9.8)

61.8 (10.9)

0.74

0.485

SNAP-IV

     

   Inattentive

17.3 (3.8)

14.9 (4.4)

17.5 (4.2)

1.60

0.212

   Hyperactivea

13.3 (5.8)

17.5 (4.7)

17.5 (4.6)

3.77

0.030

   Oppositional

11.3 (5.8)

12.0 (4.8)

9.6 (4.4)

1.06

0.355

ADHD-RS

     

   Total score

30.8 (4.5)

31.8 (5.4)

34.3 (5.7)

2.17

0.125

   Inattentionb

16.5 (2.3)

12.7 (3.1)

17.9 (3.3)

11.11

<0.001

   Hyperactivityc

14.3 (3.8)

19.2 (3.2)

16.4 (4.2)

4.88

0.012

CPT

     

   Confidence Index

53.7 (21.6)

58.3 (16.5)

63.4 (24.0)

0.91

0.408

   Omission

53.4 (10.3)

53.3 (10.7)

63.7 (30.4)

1.32

0.277

   Commission

46.4 (10.5)

47.4 (12.7)

48.3 (10.8)

0.13

0.877

   Hit RT

57.6 (13.3)

52.9 (9.9)

58.7 (15.2)

0.70

0.502

   Hit RT SE

54.3 (10.4)

54.8 (8.8)

60.5 (12.6)

1.78

0.181

   Variability

53.1 (8.9)

54.4 (8.9)

58.4 (10.7)

1.52

0.230

   Detectability

47.9 (8.7)

50.4 (13.2)

51.0 (8.2)

0.48

0.623

   Response Style

50.7 (11.7)

47.5 (6.8)

54.0 (12.0)

1.39

0.258

  1. CBCL = The Child Behavior Checklist; SNAP-IV = the Swanson, Nolan, and Pelham, and Version IV Scale; ADHD-RS = ADHD Rating Scale; CPT = The Computerized Continuous Performance Test; RT = reaction time; SE = Standard Error.
  2. a H > I, C > I, H≈C; b I > H, C > H, I≈C; c H > I, C≈H, I≈C