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Table 2 Gender and age characteristics of ADHD sample

From: ADHD characteristics: I. Concurrent co-morbidity patterns in children & adolescents

  

Male

Female

Total

Sig

 

n(%)

247(72.2)

95(27.8)

342

M > F, p=.000

AGE:

     

   mean(sd)

 

10.0(3.1)

10.6(3.3)

10.1(3.2)

Ns

   median

 

9.3

9.9

9.4

 

   range

 

6.0–18.9

6.1–17.8

6.0–18.9

 

ADDC

n(%)

149(73.4)

54(26.6)

203(59.4)

M > F, p = 0.000

   age(sd)

 

9.4(2.7)

10.0(3.3)

9.6(2.9)

Ns

ADDI

n(%)

69(65.1)

37(34.9)

106(31.0)

M > F, p = 0.000

   age(sd)

 

11.6(3.6)1

11.7(3.0)1

11.7(3.4)1

Ns

ADDH

n(%)

27(87.1)

4(12.9)

31(9.1)

M > F, p = 0.000

   age(sd)

 

8.5(2.8)

8.2(1.5)

8.5(2.7)

Ns

ADDN

n(%)

2(100)

 

2(0.6)

 

   age

 

12.0

 

12.0

 
  1. ADDC: Combined type ADHD; ADDI: Inattentive ADHD; ADDH: Hyperactive ADHD;
  2. ADDN: ADHD NOS; 1: sig. older than ADDC & ADDH (F = 21.7, df = 2, p < 0.00)