Demographic and Clinical Characteristics That Are Significantly Different across Patients Groups
| Psychiatric Emergency Room Patients with Incident Reports | Inpatients with Incident Reports | Psychiatric Emergency Room Patients with No Incident Reports | Test Statistic (df) | P | Psychiatric Emergency Room Patients with Incident Reports versus Inpatients with Incident Reports | Psychiatric Emergency Room Patients with Incident Reports versus Psychiatric Emergency Room Patients with No Incident Reports | |||
|---|---|---|---|---|---|---|---|---|---|
| Test Statistic (df) | P | Test Statistic (df) | P | ||||||
| Age, y | 37.5 ± 14.3 | 33.2 ± 12.5 | 41.4 ± 15.1 | F(2,262) = 6.38a | .0020 | t(153) = 1.88b | .062 | t(163) = 3.51b | .0006 |
| Categorical variablesc | |||||||||
| Employed | 9 (17.0) | 12 (12.0) | 30 (28.9) | χ2(2) = 9.44 | .009 | χ2(1) = 0.73 | 0.39 | χ2(1) = 2.65 | .104 |
| Prior arrests | 31 (58.5) | 59 (60.2) | 46 (43.0) | χ2(2) = 6.97 | .031 | χ2(1) = 0.042 | .84 | χ2(1) = 3.41 | .065 |
| Current AOT | 6 (11.1) | 5 (5.1) | 2 (1.8) | χ2(2) = 6.59 | .037 | χ2(1) = 1.92 | .17 | χ2(1) = 6.66 | .010 |
| History of violence | 38 (70.4) | 63 (65.6) | 41 (39.8) | χ2(2) = 19.11 | <.001 | χ2(1) = 0.35 | .56 | χ2(1) = 13.24 | <.001 |
| Presented with thoughts to harm others | 27 (49.1) | 50 (50.5) | 14 (12.7) | χ2(2) = 39.50 | <.001 | χ2(1) = 0.028 | .87 | χ2(1) = 25.96 | <.001 |
| Recent cannabinoid use | 25 (45.5) | 39 (39.0) | 29 (26.4) | χ2(2) = 6.94 | .031 | χ2(2) = 0.61 | .44 | χ2(2) = 6.07 | .014 |
| Recent cocaine use | 14 (25.5) | 14 (14.0) | 33 (30.0) | χ2(2) = 7.80 | .020 | χ2(2) = 3.15 | .076 | χ2(2) = 0.37 | .54 |
| Schizophrenia, schizoaffective, or bipolar disorder | χ2(4) = 38.09 | <.001 | χ2(2) = 1.50 | .47 | χ2(2) = 31.62 | <.001 | |||
| None | 6 (10.9) | 14 (14.0) | 37 (33.6) | ||||||
| Yes, without manic symptoms | 22 (40.0) | 47 (47.0) | 61 (55.5) | ||||||
| Yes, with manic symptoms | 27 (49.1) | 39 (39.0) | 12 (10.9) | ||||||
| Unipolar depression | 1 (1.8) | 6 (6.0) | 17 (15.5) | χ2(2) = 10.10 | .006 | χ2(2) = 1.44 | .23 | χ2(2) = 7.02 | .008 |
| Intellectual disability | 5 (9.1) | 11 (11.0) | 1 (0.9) | χ2(2) = 9.71 | .008 | χ2(2) = 0.14 | .71 | χ2(2) = 7.00 | .008 |
| Antisocial personality disorder or traits | 7 (12.7) | 3 (3.0) | 5 (4.6) | χ2(2) = 6.73 | .035 | χ2(2) = 5.56 | .018 | χ2(2) = 3.64 | .056 |
Psychiatric emergency room patients with incident reports: n = 55; inpatients with incident reports: n = 100; psychiatric emergency room patients with no incident reports: n = 110. Data are presented as mean ± SD or n (%). The full analysis with all demographic and clinical variables is available in the supplemental materials.
↵a Analysis of variance for parametric continuous variables.
↵b Post hoc analyses without adjustment.
↵c χ2 test for categorical variables.
df, degrees of freedom; AOT, assisted outpatient treatment.