Table 4 Comparison of social functioning before and after treatment in three groups of children with autism spectrum disorder.

From: HD-tDCS effects on social impairment in autism spectrum disorder with sensory processing abnormalities: a randomized controlled trial

Subject

Group

Typical sensory integration (n = 19)

Sensory integration dysfunction (n = 35)

Sham stimulation group (n = 18)

Before

After

t

P

Before

After

t

P

Before

After

t

P

Social awareness

21.94 ± 2.51

17.33 ± 2.97

5.032

 < 0.00

21.74 ± 1.88

20.68 ± 1.86

1.736

0.091

20.75 ± 2.46

20.75 ± 2.32

0.000

1.000

Social cognition

30.56 ± 3.35

25.67 ± 3.71

4.151

 < 0.00

28.68 ± 3.54

25.47 ± 2.76

3.117

0.004

28.81 ± 5.09

28.69 ± 5.20

0.069

0.946

Social communication

55.44 ± 7.63

48.00 ± 7.98

2.862

0.007

54.53 ± 8.52

48.16 ± 8.64

2.287

0.028

53.25 ± 7.21

53.44 ± 6.95

 − 0.075

0.941

Social motivation

27.94 ± 5.28

24.27 ± 5.27

2.085

0.045

28.58 ± 3.50

27.16 ± 3.93

1.176

0.247

27.50 ± 4.69

27.69 ± 4.61

 − 0.114

0.910

Autistic mannerisms

30.67 ± 4.21

26.00 ± 4.84

3.085

0.004

29.26 ± 4.01

26.68 ± 4.16

1.944

0.060

30.00 ± 7.36

29.81 ± 7.25

0.073

0.943

SRS-SUM

164.50 ± 19.13

139.06 ± 18.30

4.078

 < 0.00

162.79 ± 17.83

148.16 ± 17.45

2.557

0.015

160.31 ± 23.92

160.12 ± 22.00

0.023

0.982