Table 2.
Clinical characteristics of the sample.
| Non-suicide risk | Suicide risk | Statistics | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | t | df | p | |
| Insight (n = 395) | 4.1 | 2.3 | 3.8 | 2.0 | 1.3 | 393 | 0.183 |
| CGI-SI(n = 388) | 4.3 | 1.6 | 4.6 | 1.6 | −1.5 | 386 | 0.123 |
| Length of stay (n = 405) | 8.35 | 4.3 | 8.09 | 5.1 | 0.5 | 403 | 0.641 |
| Recent antipsychotic dose (n = 404) | 248.5 | 135 | 288.7 | 149.8 | −2.3 | 402 | 0.019 |
| BPRS (n = 395) | |||||||
| Anxiety-depression | 5.3 | 2.2 | 6.8 | 3.7 | −4.5 | 393 | <0.001 |
| Anergia | 8 | 4 | 8.5 | 3.8 | −0.9 | 393 | 0.354 |
| Thought disturbance | 6.9 | 3.9 | 7.8 | 4.3 | −1.8 | 393 | 0.079 |
| Activation | 3.4 | 1 | 3.6 | 1.2 | −1.5 | 393 | 0.133 |
| Hostile suspiciousness | 5.3 | 3.2 | 5.5 | 3.1 | −0.5 | 393 | 0.650 |
| n | % | n | % | χ2 | df | p | |
| Diagnoses (n = 408) | 20.5 | 7 | 0.005 | ||||
| Schizophrenia | 302 | 93.2 | 70 | 83.3 | |||
| Non-schizophrenia | 22 | 7.8 | 14 | 16.7 | |||
BPRS, The Brief Psychiatric Rating Scale; non-schizophrenia disorders include depression (n = 11), epileptic mental disorders due to epilepsy (n = 10), bipolar disorder (n = 8), schizoaffective disorder (n = 2), brain organic mental disorders (n = 2), mental disorders caused by psychoactive substances (n = 2), mental retardation (n = 1).