Table 1 Demographic and clinical characteristics data of autism spectrum disorders (ASD) and control children

Number of children

35

35

NS

Age (year) (mean ± SD)

4.7 ± 2.4

5.4 ± 2.4

NS

 Males

24

19

NS

 Females

11

16

 Urban

29

24

NS

 Rural

6

11

Paternal age at birth (year) (mean ± SD)

32.5 ± 6.8

31.3 ± 3.8

NS

Maternal age at birth (year) (mean ± SD)

28.2 ± 5.02

27.9 ± 3.7

NS

Prematurity

NS

 Yes

5

3

 No

30

32

Groups of ASD according to CARS

n (mean ± SD)

 Mild (30‑< 33)

10 (30.6 ± 0.3)

N/A

< 0.001*

 Moderate (33‑< 37)

16 (34.6 ± o.8)

N/A

 Severe (37–60)

9 (44.2 ± 3.6)

N/A