Table 2.
Non-matched characteristics.
| Characteristic | Cases (n=66) | Controls (n=132) | χ² | p |
|---|---|---|---|---|
| History of alcohol or illicit drug abuse, n (%) | 43 (65.2%) | 85 (64.4%) | 0.01 | 0.916 |
| Pre-existing psychiatric diagnoses | ||||
| Mood or anxiety disorder, n (%) | 46 (69.7%) | 78 (59.1%) | 2.15 | 0.147 |
| Attention deficit hyperactivity disorder, n (%) |
22 (33.3%) | 6 (4.6%) | 28.33 | <0.001* |
| Cluster B personality disorder, n (%) | 34 (51.5%) | 54 (4.1%) | 2.00 | 0.158 |
| Psychotic disorder, n (%) | 15 (22.7%) | 49 (37.1%) | 4.32 | 0.043* |
| Intellectual disability, n (%) | 26 (39.4%) | 14 (10.7%) | 21.48 | <0.001* |
| Presenting complaint | ||||
| Suicidal ideation or attempt, n (%) | 48 (72.7%) | 67 (50.8%) | 8.99 | 0.004* |
| Abnormal behaviour or other, n (%) | 18 (27.2%) | 65 (49.2%) | ||
| Brought in by police, n (%) | 25 (37.9%) | 38 (28.8%) | 1.65 | 0.197 |
| Multiple presentations n (%) | 44 (66.7%) | 71 (53.8%) | 3.04 | 0.085 |
*Significant p<0.05.