Table 1 Prevalence of PTSD, depression, and anxiety

Gender

7.27**

15.55***

0.28

4.20*

1.25

3.41

0.84

Male (n = 1856, 26.9%)

17.4

35.9

32.6

12.8

12.3

22.0

10.0

Female (n = 5042, 73.1%)

14.8

30.9

31.9

11.1

11.4

20.0

9.2

Grade

11.17*

13.99**

15.36**

15.0**

11.29*

13.4**

12.52**

Grade1 (n = 3152, 45.7%)

15.7

32.5

30.4

11.1

11.6

20.0

9.3

Grade 2 (n = 1663, 24.1%)

15.7

32.7

33.0

12.1

11.8

20.5

9.5

Grade 3 (n = 1688, 24.5%)

16.2

33.3

35.3

13.0

12.6

22.9

10.8

Grade 4 (n = 395, 5.7%)

9.6

23.8

28.4

6.3

6.6

15.2

5.1

Left-behind experiences

4.15*

13.55***

27.35

6.48*

8.28**

19.24***

8.46**

Yes (n = 2563, 37.2%)

16.6

34.9

35.9

12.8

13.1

23.3

10.8

Non (n = 4335, 61.5%)

14.8

30.6

29.9

10.8

10.8

18.9

8.7

Household residence

0.92

2.07

8.04**

0.38

0.24

0.76

0.56

City (n = 2535, 36.7%)

16.0

31.2

30.0

11.8

11.9

20.0

9.8

Village (n = 4363, 63.3%)

15.2

32.8

33.3

11.3

11.5

20.9

9.2

Only child or not

0.30

0.94

10.51**

1.21

2.13

4.38*

2.52

Yes (n = 2657, 38.5%)

15.2

31.5

29.2

11.0

10.9

19.3

8.7

No (n = 4241, 61.5%)

15.7

32.7

33.6

11.9

12.1

21.4

9.9

Family month income

6.07*

9.80**

8.46**

10.52**

8.74**

11.10**

12.08**

≤ 5000 (n = 2454, 35.6%)

16.9

34.6

34.3

13.2

13.2

22.7

11.1

> 5000 (n = 4444, 64.4%)

14.7

30.9

30.9

10.6

10.8

19.4

8.5

Previous trauma experiences

0.50

19.55***

52.65***

3.94*

9.13**

47.08***

12.49***

Yes (n = 2539, 36.8%)

15.9

35.5

37.5

12.5

13.2

24.9

11.1

No (n = 4359, 63.2%)

15.2

30.3

29.0

10.9

10.7

18.0

8.5