Table 1.
Descriptive characteristics of the study sample according to violent and non-violent patients
| Descriptive characteristics | Total sample | Violent and non-violent groups | ||
|---|---|---|---|---|
| N = 240 | violent patients (N = 62) | Non-violent patients (N = 178) | p value | |
| Gender (male), %(n) | 67.5 (162) | 87 (54) | 60.7 (108) | 0.001 |
| Age at the entry in the program, M(s.d.) | 23.91 (0.31) | 22.68 (0.56) | 24.34 (0.37) | 0.0154 |
| Civil status : single, %(n) | 85.17 (201) | 85.25 (52) | 85.14 (149) | |
| Civil status: married, %(n) | 8.47 (20) | 8.2 (5) | 8.57 (15) | |
| Civil status: divorced, %(n) | 2.97 (7) | 3.28 (2) | 2.86 (5) | 0.9981 |
| Number of years at school, M(s.d.) | 9.73 (0.19) | 8.79 (0.34) | 10.04 (0.22) | 0.0030 |
| Student, %(n) | 20 (48) | 11.29 (7) | 23.03 (41) | |
| Professional activity, %(n) | 14.17 (34) | 9.68 (6) | 15.73 (28) | |
| No professional activity, %(n) | 65.83 (158) | 79.03 (49) | 61.24 (109) | 0.0374 |
| Previous violence, %(n) | 10.19 (21) | 35.71 (20) | 0.67 (1) | 0 |
| School maladjustement, %(n) | 31.67 (76) | 41.94 (26) | 28.09 (50) | 0.0629 |
| Duration of untreated psychosis, M(s.d.) | 1.3 (0.14) | 1.04 (0.22) | 1.39 (0.18) | 0.2166 |
| Diagnosis | ||||
| Schizophrenia, %(n) | 58.33 (140) | 56.74 (101) | 62.9 (39) | |
| Schizophreniform/brief, %(n) | 9.58 (23) | 11.24 (20) | 4.84 (3) | |
| Schizoaffective disorder, %(n) | 9.58 (23) | 7.87 (14) | 14.52 (9) | |
| Major depression with psychotic features, %(n) | 4.58 (11) | 5.06 (9) | 3.23 (2) | |
| Bipolar disorder, %(n) | 6.67 (16) | 6.74 (12) | 6.45 (4) | |
| Others, %(n) | 11.25 (27) | 12.36 (22) | 8.06 (5) | 0.3600 |
| Substance use at program entry | ||||
| Alcohol, %(n) | 69.91 (158) | 72.41 (42) | 69.05 (116) | 0.7521 |
| Cannabis, %(n) | 43.3 (97) | 63.79 (37) | 36.14 (60) | <0.0001 |
| Age of onset of substance use | ||||
| Alcohol, M(s.d.) | 15.73 (0.17) | 15.12 (0.26) | 15.93 (0.21) | 0.0162 |
| Cannabis, M(s.d.) | 16.47 (0.29) | 15.29 (0.45) | 16.97 (0.35) | 0.0052 |
The P values in bold are significant.