Table 1.
Demographic characteristics of the schizophrenia and healthy controls.
| Variables | S1 | S1&S2 | ||||
|---|---|---|---|---|---|---|
| SZ | HCs | P value | SZ | HCs | P value | |
| N | 528 | 528 | 1559 | 1149 | ||
| Age (years) | 27.32 ± 8.03 | 27.73 ± 8.01 | 0.95 | 21.27 ± 14.57 | 23.56 ± 18.81 | <0.01 |
| Age of Oneset (years) | 23.47 ± 8.26 | NA | 16.09 ± 12.06 | NA | ||
| Duration of Illness (years) | 6.18 ± 5.91 | NA | 7.69 ± 7.46 | NA | ||
| Gender (male/female) | 1.00 | 0.21 | ||||
| Male | 264 | 264 | 801 | 552 | ||
| Female | 264 | 264 | 758 | 597 | ||
| Family history | <0.01 | <0.01 | ||||
| Yes | 82 | 0 | 264 | 0 | ||
| No | 446 | 528 | 1,295 | 1,149 | ||
| Diagnosis Subtype | ||||||
| Paranoid | 528 | NA | 1,335 | NA | ||
| Undifferentiated | 0 | NA | 197 | NA | ||
| Catatonic | 0 | 15 | ||||
| Residual | 0 | 12 | ||||
S1, Stage 1; S2, Stage 2; SZ, Schizophrenia, HC, health controls.