From: The copycat phenomenon after two Finnish school shootings: an adolescent psychiatric perspective
Symptom | Copycats | Inpatients | Outpatients | Inpatients vs. Copycats | Outpatients vs. Copycats | ||
---|---|---|---|---|---|---|---|
 |  |  |  | p | OR (95% CI) | p | OR (95% CI) |
family violence | 5.2 (4/77) | 16.6 (31/187) | 16.7 (33/198) | 0.009 | 3.8 (1.2- 12.3) | 0.008 | 3.9 (1.1- 13.7) |
parental substance use problems | 20.8 (16/77) | 17.1 (32/187) | 12.5 (24/198) | 0.28 | 0.6 (0.3-1.4) | 0.05 | 0.64 (0.26- 1.60) |
divorce or separation | 9.1 (7/77) | 5.9 (11/187) | 6.1 (12/198) | 0.24 | 0.6 (0.2-1.9) | 0.25 | 0.49 (0.13- 1.79) |
bereavement | 1.3 (1/77) | 12.8 (24/187) | 8.1 (16/198) | 0.002 | 10.5 (1.3- 84.4) | 0.03 | 7.89 (0.88- 68.4) |
parental severe somatic illness | 9.1 (7/77) | 3.7 (7/187) | 9.1 (18/198) | 0.07 | 0.5 (0.1-1.8) | 0.57 | 0.80 (0.24- 2.65) |
parental severe mental disorder | 23.4 (18/77) | 11.8 (22/187) | 15.2 (30/198) | 0.03 | 0.4 (0.2-1.0)* | 0.11 | 0.84 (0.36- 1.98) |
severe financial difficulties, unemployment etc. | 10.4 (8/77) | 4.8 (9/187) | 12.1 (24/198) | 0.08 | 0.5 (0.2-1.6) | 0.45 | 0.58 (0.19- 1.77) |
severe problems related to siblings | 9.1 (7/77) | 7.0 (13/187) | 15.2 (30/198) | 0.35 | 0.5 (0.2-1.6) | 0.14 | 0.82 (0.27- 2.52) |
(suspected) sexual abuse within the family | 2.6 (2/77) | 3.7 (7/187) | 2.5 (5/198) | 0.49 | 0.5 (0.1-3.9) | 0.62 | 0.30 (0.03-2.88) |