Table 1.
Subject demographics
| Patients (n = 1119) | Controls (n = 589) | |
|---|---|---|
| Age | 27.6 ± 8.0 | 30.4 ± 10.6 |
| Sex n (%), male | 852 (76.1) | 269 (45.6) |
| Ethnicity | ||
| Caucasian n (%) | 857 (76.6) | 530 (90.0) |
| Other n (%) | 262 (23.4) | 59 (10.0) |
| Childhood urbanicitya | 2.7 ± 1.6 | 2.6 ± 1.6 |
| CTQ | 1.6 ± 0.5 | 1.3 ± 0.4 |
| Diagnosis n (%) | ||
| No diagnosis on axis I | – | 536 (91.0) |
| Schizophrenia-related disorder | 792 (71.4) | – |
| Schizoaffective disorder | 120 (10.8) | – |
| Brief psychotic disorder | 33 (3.0) | – |
| Delusional disorder | 22 (2.0) | – |
| Substance-induced psychotic disorder | 5 (0.5) | – |
| Psychotic disorder NOS | 118 (10.6) | – |
| Psychotic disorder due to medical condition | 1 (0.1) | – |
| Mood disorder | 16 (1.4) | 52 (8.8) |
| Delirium | 1 (0.1) | – |
| Anxiety-related disorder | – | 1 (0.2) |
| Substance-related disorder | 1 (0.1) | – |
CTQ Childhood Trauma Questionnaire, range 1–5
aFive levels of urbanicity/population density 1 = <500 inhabitants/km2; 2 = 500–1000 inhabitants/km2; 3 = inhabitants 1000–1500/km2; 4 = inhabitants 1500–2500/km2; 5 = 2500+/km