Table 1 Bivariate associations (chi-squared tests) and comparisons of means (t tests) between sociodemographic and clinical characteristics of the sample and occurrence of S/R (n = 782 admissions); Bonferroni adjusted p < 0.002 (0.05/23) was considered significant

Age, mean (SD)

14.9 (1.8)

14.6 (2.0)

n.a.

1.285 (780)

0.199

Female sex, n (%)

90 (90%)

514 (75.4%)

10.622

n.a.

0.001

Length of stay in days, mean (SD)

30.6 (56.0)

29.4 (34.4)

n.a.

0.220 (110.182)

0.827

Prior admission, n (%)

82 (82%)

396 (58.1%)

21.027

n.a.

< 0.001

Total number of admissions, mean (SD)

11.6 (10.1)

3.2 (4.2)

n.a.

8.276 (103.939)

< 0.001

Involuntary admission, n (%)

100 (100%)

115 (16.9%)

302.390

n.a.

< 0.001

Out of home care, n (%)

71 (71%)

194 (28.4%)

70.492

n.a.

< 0.001

Psychiatric comorbidity, n (%)

67 (67%)

373 (54.7%)

5.369

n.a.

0.020

Total number of diagnoses, mean (SD)

2.00 (1.06)

1.81 (0.95)

n.a.

1.860 (780)

0.063

Primary diagnosis of

  Schizophrenia spectrum disorder, n (%)

2 (2%)

40 (5.9%)

2.563

n.a.

0.109

  PTSD, n (%)

32 (32%)

98 (14.4%)

19.558

n.a.

< 0.001

  PD, n (%)

42 (42%)

70 (10.3%)

71.582

n.a.

< 0.001

  ADHD or conduct disorder, n (%)

7 (7%)

45 (6.6%)

0.023

n.a.

0.880

  Manic episode or bipolar disorder, n (%)

2 (2%)

4 (0.6%)

2.289

n.a.

0.130

  Substance use disorder, n (%)

0 (0%)

10 (1.5%)

1.485

n.a.

0.223

  Depressive disorder, n (%)

6 (6%)

143 (21.0%)

12.668

n.a.

< 0.001

  Anxiety disorder, n (%)

1 (1%)

18 (2.6%)

0.989

n.a.

0.320

Comorbid diagnosis of 

    PTSD, n (%)

 13 (13%)

64 (9.4%)

  1.284

  n.a.

  0.257

    PD, n (%)

 33 (33%)

 44 (6.5%)

  69.245

  n.a.

  < 0.001

    Substance use disorder, n (%)

 2 (2%)

 22 (3.2%)

  0.441

  n.a.

  0.507

    Intellectual disability, n (%)

 2 (2%)

 10 (1.5%)

  0.164

  n.a.

  0.685

Any diagnosis of 

    PTSD, n (%)

43 (43%)

144 (21.1%)

22.959

n.a.

< 0.001

    PD, n (%)

66 (66%)

104 (15.2%)

132.031

n.a.

< 0.001