TABLE 3.
Comparison within subtypes of self-harmers based on suicidal intent as described by the patients at admission.
| Statistics | |||||
|---|---|---|---|---|---|
| NSSI n = 103 | SA n = 68 | NSSI + SA n = 35 | Kruskall–Wallis F/Pearson χ2(df) | p-Value | |
| Demographics | |||||
| Age in years, mean (SD) | 14.9 (1.7) | 15.7 (1.8) | 15.5 (1.8) | 91.836 | 0.01 |
| Females, n (%) | 80 (77.7) | 43 (63.2) | 30 (85.7) | 7.355 (2) | 0.025 |
| Pre-admission clinical parameters | |||||
| No history of prior psychiatric admissions, n (%) | 82 (79.6) | 53 (77.9) | 25 (71.4) | 1.013 (2) | 0.603 |
| Family history of mood disorder, n (%) | 12 (15.6) | 12 (26.7) | 9 (32.1) | 4.097 (2) | 0.129 |
| Clinical parameters reported at admission | |||||
| Cigarette smoker, n (%) | 34(34) | 17 (25.4) | 6(17.1) | 4.038 (2) | 0.133 |
| Alcohol use, n (%) | 40(40) | 20 (29.9) | 10 (28.6) | 2.517 (2) | 0.284 |
| Cannabis use, n (%) | 11 (11) | 6 (9) | 2(5.7) | 1.935 (2) | 0.748 |
| Number of prior suicide attempts, mean (SD) | 0.36 (0.7) | 1.73 (1.4) | 1.63 (1.4) | 9.257 | <0.001 |
| Depressive episodes leading to current admission, n (%) | 54 (52.4) | 40 (58.8) | 26 (76.5) | 6.092 (2) | 0.048 |
| Non-affective psychosis leading to current admission, n (%) | 4 (3.9) | 4 (5.9) | 3(8.6) | 1.163 (2) | 0.559 |
| Clinical characteristics of hospitalization | |||||
| Hospitalization duration in days, mean (SD) | 56.2 (91) | 47.6 (69) | 59.2 (76) | 2 | 0.344 |
| Suicidal ideation at admission, n (%) | 66 (66.7) | 53 (80.3) | 26 (74.3) | 3.761 (2) | 0.152 |
| Patients requiring restrain or isolation, n (%) | 9 (8.7) | 6 (8.8) | 2 (5.7) | 0.359 (1) | 0.836 |
| Diagnoses at discharge | |||||
| Depression or dysthymia, n (%) | 33(32%) | 23(33.8%) | 15(42.9%) | 9.945 (6) | 0.127 |
| Cluster B personality disorder, n (%) | 27 (26.2%) | 11(16.2%) | 9(25.7%) | ||
| Psychotic disorder, n (%) | 3(2.9%) | 5(7.4%) | 4(11.4%) | ||
| Other diagnoses, n (%) | 40 (38.8%) | 29 (42.6%) | 7 (20%) |
NSSI: non-suicidal self-injury; SA: suicide attempt.