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Table 2 Frequency of ADHD subtypes and symptoms of inattention and hyperactivity/impulsivity in each of the ASD subtypes

From: Psychiatric and psychosocial problems in adults with normal-intelligence autism spectrum disorders

  Autistic disorder
(N=5)
Asperger's disorder
(N=67)
PDD NOS
(N=50)
AS – PDD NOSa Total
(N=122)
Male
(N=82)
Female
(N=40)
Male – Femalea
  N % N % N % χ2
(df = 1)
p N % N % N % χ2
(df = 1)
p
Inattentive subtype 2 40 8 12 11 22 2.13 0.21 21 17 14 17 7 18 0.00 1.00
Hyperactive/impulsive subtype 0 0 5 8 3 6 0.10 1.00 8 7 5 6 3 8 0.09 0.72
Combined subtype 0 0 11 16 12 24 1.04 0.35 23 19 16 20 7 18 0.07 1.00
Any ADHD 2 40 24 36 26 52 3.06 0.09 52 43 35 43 17 43 0.00 1.00
        AS – PDD NOSb        Male – Femaleb
        Z p        Z p
Median and range of inattentive criteria met 4
(0–7)
  3
(0–8)
  6
(0–9)
  -2.52 0.01 4
(0–9)
  4
(0–9)
  3
(0–9)
  -0.49 0.63
Median and range of hyperactive/impulsive criteria met 2
(0–7)
  1
(0–9)
  3 (0–9)   -2.69 0.007 2
(0–9)
  2
(0–9)
  2
(0–9)
  -0.89 0.37
  1. aFisher's exact χ 2 test; bMann-Whitney U test