Table 1

Distribution of DSM-IV and Gillberg and Gillberg (G&G) criteria across the diagnostic categories

Type of DSM-IV PDD

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


DSM IV criterion A1 "Qualitative impairment in social interaction"

5

100

67

100

47

94

4.13

0.08

119

98

80

98

39

98

0.00

1.00

DSM-IV Criterion A2: "Qualitative impairment in communication"

5

100

34

51

18

36

2.52

0.13

57

47

41

50

16

40

1.08

0.34

DSM-IV Criterion A3: "Restricted, repetitive and stereotyped behaviour, interests, and activities"

5

100

65

97

29

58

27.60

<0.001

99

81

70

85

29

73

2.91

0.14

G&G Criterion 1; "Social interaction problems"

5

100

67

100

47

96

4.13

0.08

119

98

80

98

39

98

0.00

1.00

G&G Criterion 2: "Narrow interests"

5

100

64

96

33

67

17.61

<0.001

102

84

69

84

33

83

0.05

0.80

G&G Criterion 3; "Repetitive routines"

5

100

61

91

25

51

24.77

<0.001

91

75

62

76

29

73

0.14

0.83

G&G Criterion 4: "Speech and language"

5

100

56

84

22

45

20.19

<0.001

83

69

57

70

26

65

0.25

0.68

G&G Criterion 5: "Non-verbal communication problems"

5

100

66

99

37

76

16.33

<0.001

108

89

74

90

34

85

0.73

0.38

G&G Criterion 6: "Motor clumsiness"

5

100

57

85

31

63

8.18

0.005

94

78

60

73

33

83

1.29

0.37


aFisher's exact χ2 test

Hofvander et al. BMC Psychiatry 2009 9:35   doi:10.1186/1471-244X-9-35

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