Table 1.
Characteristics of the participants.
| Controls (n = 21) |
Childhood-Onset Schizophrenia (n = 21) |
|
|---|---|---|
| Male/female | 15/6 | 15/6 |
| Age (years) | 19.3 (4.2) | 19.5 (4.8) |
| Parental socioeconomic status (Hollingshead) | 46.8 (17.9) | 47.0 (15.3) |
| IQ (Wechsler-IV) | 89.6 (11.4) | 90.3 (12.5) |
| Duration of illness (years) | - | 9.2 (3.4) |
| PANSS—positive symptoms | - | 19.3 (5.7) |
| PANSS—negative symptoms | - | 21.6 (8.0) |
| PANSS—general symptoms | - | 45.9 (13.1) |
| Type of antipsychotics | - | Clozapine (n = 17) Risperidone (n = 3) Olanzapine (n = 1) |
| Chlorpromazine-equivalent dose of antipsychotics (mg/day) | 342.2 (119.3) |
Data are mean (standard deviation), except sex distribution and type of antipsychotics. The two groups did not differ in sex distribution, age, parental socioeconomic status, and IQ (p > 0.5).