Table 1. Healthy nonpsychiatric comparison subjects and patient demographics.
| Demographic and clinical characteristics | Nonpsychiatric comparison subjects (n=23) (±s.d., min–max) | Patients with schizophrenia (n=20) (±s.d., min–max) |
|---|---|---|
| Gender (% male) | 52 | 60 |
| Mean age (years) | 43.6 (±9.9, 20–59) | 42.8 (±8.8, 28–62) |
| Education | 13.9 (±2.5, 9–20) | 12.0a (±1.9, 9–16) |
| Smoking | 26.1 % | 42.1 % |
| Right handedness | 87.0 % | 90.0 % |
| Age of illness onset (years) | 19 (±1.1, 12–30) | |
| Duration of illness (years) | 24 (±9.2, 8–42) | |
| SAPS total score | 9.9 (±4.4, 4–17) | |
| SANS total score | 17.3 (±3.3, 7–22) | |
| GAF | 41.2 (± 0.9, 36–47) | |
| Patients receiving medication type, no. | ||
| No AP | 2 | |
| Typical AP (exclusively) | 5 | |
| Atypical AP (exclusively) | 13 | |
| Typical+atypical AP | 0 | |
Abbreviations: AP, antipsychotic; GAF, Global Assessment of Functioning Scale; SANS, Scale for the Assessment of Negative Symptoms; SAPS, Scale for the Assessment of Positive Symptoms.
Patient symptoms are also included.
a
P<0.05 when compared with healthy subjects.