Table 1. Demographic and clinical characteristics of the study sample.
| Characteristics | HC a (N = 25) (Mean±SD) |
SZ b (N = 37) (Mean±SD) |
t | P |
|---|---|---|---|---|
| Age(years) | 23.16±5.41 | 22.14±5.02 | 1.312 | 0.195 |
| Education(years) | 13.52±3.77 | 12.81±2.12 | 0.855 | 0.399 |
| Gender (Male/Female) | 15/10 | 24/13 | 0.791 | |
| ICVc (cm3) | 1623.47±141.11 | 1669.23±162.50 | -1.145 | 0.257 |
| Age of onset (years) | N/A | 21.7 +3.9 | ||
| Duration untreated psychosis (months) | N/A | 8.31±7.49 | ||
| PANSS-positive | N/A | 21.22±2.96 | ||
| PANSS-negative | N/A | 17.95±2.33 | ||
| PANSS-general | N/A | 38.32±2.93 | ||
| PANSS-total | N/A | 77.43±4.20 |
HC: healthy control group.
SZ: schizophrenia patient group.
ICV: intracranial volume
PANSS: the Positive and Negative Syndrome Scale, including positive symptoms, negative symptoms, general psychopathology subscales and total scores.