Skip to main content

Table 2 Patient characteristics

From: Global impression of perceived difficulties in children and adolescents with attention-deficit/hyperactivity disorder: Reliability and validity of a new instrument assessing perceived difficulties from a patient, parent and physician perspective over the day

  

Age (Years)

Age at 1st occurrence of symptoms (Years)

Age at 1st ADHD-diagnosis (Years)

 

N (%)

Mean

SD

Mean

SD

Mean

SD

All patients

421 (100)

11.1

2.74

4.0

2.03

8.1

2.59

Boys

338 (80.3)

11.0

2.70

4.0

1.94

7.9

2.54

Girls

83 (19.7)

11.6

2.87

4.3

2.35

8.8

2.70

Combined subtype*

278 (66.0)

10.6

2.58

3.7

1.92

7.6

2.42

Predominantly inattentive subtype*

124 (29.5)

12.4

2.59

4.7

1.93

9.2

2.58

Predominantly hyperactive-impulsive subtype*

6 (1.4)

8.6

2.33

4.2

2.01

6.6

2.22

ADHD, not otherwise specified *

13 (3.1)

11.7

3.08

4.8

3.42

9.6

2.30

  1. * According to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition
  2. ADHD = Attention-Deficit/Hyperactivity Disorder; SD = standard deviation.
Back to article page

Child and Adolescent Psychiatry and Mental Health

ISSN: 1753-2000