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. 2014 Mar 12;5:23. doi: 10.1186/2040-2392-5-23

Table 1.

Demographic data

Characteristics Typical development (TD)
Autism spectrum disorders (ASD)
 
(n = 28) (n = 12)
 
 
 
χ 2
df
P
Male: female
15:13
9:3
1.607
1
0.205
 
Mean
SD
Mean
SD
U
 
P
Age (months)
134.1
31.1
119.3
31.9
109
 
0.081
Estimated IQ
102.6
17.8
102.0
15.0
78.5
 
0.788
Social responsiveness scale T-score
Total score
47.3
9.3
73.8
17.3
23
 
0.000**
Social awareness
45.4
10.9
65.6
12.0
25
 
0.000**
Social cognition
47.8
7.5
73.5
12.5
16.5
 
0.000**
Social communication
47.7
8.5
70.2
19.8
38.5
 
0.000**
Social motivation
45.2
9.4
57.8
17.1
87.5
 
0.017*
Autistic mannerisms 51.6 11.5 82.3 18.0 24.5   0.000**

ASD, Autism spectrum disorders; df, degrees of freedom; IQ, intelligence quotient; SD, standard deviation; TD, typical development. Mann–Whitney U test; *P <0.05; **P <0.01.