Table 1.
Baseline demographics and clinical ratings
| FEP (N = 43) | HC (N = 35) | |||||||
|---|---|---|---|---|---|---|---|---|
| Characteristic | Mean | s.d. | N | Mean | s.d. | N | T/χ2 | p value |
| Age (years) | 22.37 | 4.66 | 22.22 | 3.52 | −0.156 | 0.8765 | ||
| Sex | 0.026 | 0.8721 | ||||||
| Males | 29 | 23 | ||||||
| Females | 14 | 12 | ||||||
| IQ (WASI) | 105.09 | 13.42 | 108.03 | 8.88 | 1.159 | 0.2503 | ||
| MCCB (total) | 37.59 | 15.75 | 49.57 | 6.33 | 4.374 | 0.00006 | ||
| Percent correct | ||||||||
| Load 1 | 82.12 | 13.93 | 91.61 | 7.34 | −3.856 | 0.00026 | ||
| Load 3 | 67.51 | 14.99 | 76.70 | 10.97 | −3.120 | 0.00256 | ||
| Reaction time (seconds) | ||||||||
| Load 1 | 1053.92 | 158.52 | 973.46 | 191.75 | 1.990 | 0.05077 | ||
| Load 3 | 1119.14 | 191.81 | 1076.67 | 203.60 | 0.940 | 0.3502 | ||
| #Antipsychotic naive | NA | |||||||
| BPRS (total) | 45.29 | 8.87 | NA | |||||
| BPRS (psychotic symptoms) | 8.81 | 2.90 | NA | |||||
| BPRS (negative symptoms) | 6.76 | 2.68 | NA | |||||
| Mean antipsychotic dosage (chlorpromazine equivalent in mg) | 152.4 | 101.6 | NA | |||||