n

%

Total N

7854

Gender

Male

4239

54

Female

3615

46

Age group

Preschool

1353

17

Elementary school

2926

37

Junior high school

1909

24

High school

1666

21

Experience of maltreatment

Yes

4501

57

No

3353

43

Status of neurodevelopmental disorders

No diagnosis

5993

76

1 diagnosis

1705

22

2 diagnoses

147

1.9

3 diagnoses

9

0.1