Table 1.
Demographic and clinical characteristics.
| Schizophrenia n = 34 |
Violent Schizophrenia n = 19 |
Control subjects n = 66 |
Statistics p-value |
||||
|---|---|---|---|---|---|---|---|
| Number | % | Number | % | Number | % | Chi-square | |
| Sex (m/f) | 33/1 | 97/3 | 18/1 | 95/5 | 64/2 | 97/3 | NS |
| Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | ANOVA | |
| Age (years) | 27.2 (6.7) | 19–48 | 33.2 (9.4) | 19-54 | 32.3 (7.1) | 19–46 | 0.002 |
| Years of education (n = 34/16/66) | 13.3 (2.9) | 4.5–20 | 9.9 (1.8) | 6-15 | 14.4 (2.9) | 12–25 | 0.000 |
| Number | % | Number | % | Number | % | Chi-square | |
| Cannabis, last 2 years (no/yes) | 14/20 | 41/59 | 11/7 | 61/39 | NS | ||
| Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | t-test | |
|
Alcohol last 2 years (units) (n = 31/16/-) |
428.0 (778.3) | 0–4160 | 216.4 (539.6) | 0–1872 | NS | ||
| GAF symptom (n = 34/17/-) | 47.4 (16.3) | 21–91 | 41.8 (13.9) | 28–73 | NS | ||
| GAF function (n = 34/17/-) | 46.9 (14.9) | 21–85 | 39.1 (15.5) | 20–78 | NS | ||
| PANSS positive (n = 34/16/-) | 14.6 (5.7) | 7–32 | 16.4 (7.5) | 7–28 | NS | ||
| PANSS negative (n = 34/16/-) | 17.4 (6.7) | 7–43 | 18.6 (5.8) | 8–27 | NS | ||
| PANSS general (n = 34/16/-) | 32.8 (9.7) | 17–69 | 30.2 (10.9) | 18–49 | NS | ||
| Age at psychosis onset (n = 33/17/-) | 23.1 (4.5) | 16–38 | 18.4 (5.9) | 10–30 | 0.003 | ||
| Age at first psychosis admission (n = 31/14/-) | 24.8 (4.9) | 18–41 | 20.0 (5.2) | 10–29 | 0.005 | ||
m/f, male/female; SD, standard deviation; GAF, Global Assessment of Function split version; PANSS, Positive and Negative Syndrome Scale; ns, non-significant.