Table 3 Clinical characteristics at the time of death in adolescents reported by parents (N = 36)

Psychological assessment

 K-BDI-II

24.2 ± 13.6

22.1 ± 14.9

26.1 ± 12.6

0.331

 K-ARS

10.8 ± 10.3

9.9 ± 8.3

11.6 ± 12.0

0.794

 K-BIS-11

65.4 ± 12.1

64.7 ± 11.2

66.1 ± 13.2

0.851

 KO scale

31.7 ± 6.1

31.6 ± 6.0

31.9 ± 6.3

0.790

Personality trait

 Avoidant

28.6 ± 20.3

21.4 ± 19.2

35.8 ± 19.3

0.020*

 Submissive

27.3 ± 22.1

19.0 ± 18.4

35.7 ± 22.8

0.016*

 Asocial

26.8 ± 20.6

23.0 ± 17.6

30.7 ± 23.1

0.443

 Conforming

21.3 ± 18.2

17.5 ± 14.5

25.2 ± 21.0

0.279

 Negativity

17.3 ± 19.2

11.4 ± 16.3

23.3 ± 20.4

0.047*

 Problem indicator

15 ± 20.4

8.9 ± 19.0

21.1 ± 20.4

0.020*

 Gregarious

13.8 ± 14.9

13.0 ± 15.3

14.6 ± 14.9

0.696

Previous self-injury history

0.048^*

 Yes

7 (19.4%)

1 (2.8%)

6 (16.7%)

 No

27 (75.0%)

15 (41.7%)

12 (33.3%)

 Do not know

2 (5.6%)

2 (5.6%)

0 (0%)

Previous suicidal attempt history

> 0.99

 Yes

5 (13.9%)

3 (8.3%)

2 (5.6%)

 No

31 (86.1%)

15 (41.7%)

16 (44.4%)

Recommendation by a close acquaintance for psychiatric counseling or treatment

17 (47.2%)

7 (19.4%)

10 (27.8%)

0.318

Self-request for psychiatric counseling or treatment

12 (33.3%)

6 (16.7%)

6 (16.7%)

> 0.99

Psychiatric intervention history

Yes

17 (47.2%)

Psychiatric treatment

13 (36.1%)

7 (19.4%)

6 (16.7%)

> 0.99

Psychological counseling

14 (38.9%)

6 (16.7%)

8 (22.2%)

0.733

Both

12 (33.3%)

6 (16.7%)

6 (16.7%)

> 0.99

 No

19 (52.8%)

9 (25%)

10 (27.8%)

> 0.99

Admission history in psychiatry department

> 0.99

 Yes

3 (8.3%)

1 (2.8%)

2 (5.6%)

 No

33 (91.7%)

17 (47.2%)

16 (44.4%)

Medication treatment before death

0.876

Yes

7 (19.4%)

Regularly

3 (8.3%)

1 (2.8%)

2 (5.6%)

intermittent

4 (11.1%)

2 (5.6%)

2 (5.6%)

No

29 (80.6%)

stop

3 (8.3%)

1 (2.8%)

2 (5.6%)

No history

26 (72.2%)

14 (38.9%)

12 (33.3%)