Baseline

Follow-up

N

48

42

Age (years), Mean (SD)

6 (3.37)

7 (2.9)

Gender (% males)

81

80

Diagnosis n (%)

Autistic Disorder

25 (52)

24 (57)

Asperger Syndrome

6 (13)

4 (10)

PDD-NOS

17 (35)

14 (33)

VABS-Composite, mean (SD)

60 (18.7)^a

62.9 (17.9)^b

WPPSI-III/WISC-III, mean (SD)

82.4 (18.9)^c

83 (24.3)^d

Leiter-R, mean (SD)

48.3 (16.2)^e

50.1 (17.9)^f

PEP3-CVP, mean (SD)

43.6 (22.3)^g

48.9 (24.2)^h

PEP3-CP, mean (SD)

7.6 (3.5)ⁱ

6.7 (2.2)^j

PEP3-AP, mean (SD)

10.6 (2.7)ⁱ

12.5 (0.8)^j

PEP3-CA, mean (SD)

10.4 (2.4)i

10.6 (2.6)^j

ADOS-A, mean (SD)

2.1 (3.3)^k

1.7 (0.4)^l

ADOS-B, mean (SD)

2.5 (4.4)^k

1.8 (0.3)^l

DD-CGAS, mean (SD)

57.5 (13.4)

62.9 (11)