Table 1.
Demographics and Psychopathology of PET Sample
| Unmedicated Schizophrenia Patients (N = 19) | Healthy Individuals (N = 23) | Statistics | |
|---|---|---|---|
| Gender | 12 males, 7 females | 16 males, 7 females | Χ 2(1) = 0.192, P = .661 |
| Age (y) | 33.2 ± 9.5 y (20–56) | 32.2 ± 8.2 (20–50) | t(37) = 0.365, P = .717 |
| Verbal IQ | 96.7 ± 10.3 (80–110) | 105.2 ± 7.3 (85–115) | t(35) = 3.0, P = .005 |
| Medication status | n = 6 drug-naïve n = 13 unmedicated | ||
| Duration of illness (y) | 4.6 ± 5.3 (0–18) | ||
| Age of illness onset (y) | 28.2 ± 10.7 (15–51) | ||
| 5F-PANSSa positive | 15.3 ± 3.4 (8–21) | ||
| 5F-PANSSa negative | 24.5 ± 5.2 (14–33) | ||
| 5F-PANSSa disorganized | 11.6 ± 2.7 (8–20) | ||
| 5F-PANSSa excited | 11.2 ± 2.7 (8–17) | ||
| 5F-PANSSa depressed | 10.6 ± 2.3 (7–15) | ||
| 5F-PANSSa total | 73.1 ± 10.9 (49–95) |
Note: Mean ± SD (minimum-maximum). PANSS, Positive and Negative Syndrome Scale.
a5F-PANSS referring to the consensus 5 factors structure reported by Wallwork and colleagues.45