Table 1 Clinical variables in patients with schizophrenia and case-matched healthy subjects.
| Â | Patients with schizophrenia | Healthy subjects | ||
|---|---|---|---|---|
Mean | SD | Mean | SD | |
Age, years | 47.5 | 10.8 | 47.0 | 11.4 |
Illness duration, years | 23.8 | 11.6 | Â | Â |
BPRS, total scores | 22.5 | 11.6 | Â | Â |
BPRS, four-dimensional model | ||||
 Thinking disturbancea | 6.0 | 4.1 |  |  |
 Withdrawal-retardationb | 5.0 | 3.9 |  |  |
 Hostile-suspiciousness | 2.7 | 2.9 |  |  |
 Anxious depression | 2.9 | 2.2 |  |  |
GAF score | 36.2 | 16.6 | Â | Â |
Antipsychoticsc, mg/day | 815 | 572 | Â | Â |
Sex | 21 men, 19 women | 21 men, 19 women | ||