Table 1.
Participants’ Characteristics by Groups
| Characteristics | Healthy | SPD | Schizophreniaa | Relatives | OPb |
|---|---|---|---|---|---|
| Sample size | 1577 | 256 | 738 | 155 | 379 |
| Gender (% male) | 51% | 52% | 63% | 42% | 58% |
| Age | 29.53 (18.85) | 20.77 (4.17) | 30.40 (10.95) | 45.22 (18.59) | 30.30 (16.35) |
| Age group (%) | |||||
| ≤19 | 30.7 | 39.8 | 14.1 | 8.4 | 21.9 |
| 20–29 | 43.4 | 57.8 | 41.6 | 23.2 | 42.5 |
| 30–39 | 5.1 | 0.4 | 21.8 | 5.8 | 16.4 |
| 40–59 | 5.6 | 2.0 | 22.0 | 36.8 | 11.1 |
| ≥60 | 15.2 | 0.0 | 0.5 | 25.8 | 8.2 |
| Intellect | 2.72 (1.18) | 3.22 (0.73) | 2.37 (1.02) | 2.66 (1.03) | 2.49 (1.13) |
| Intellect (%) | |||||
| 1: ≤25% (bottom) | 23.0 | 3.1 | 23.7 | 16.1 | 27.2 |
| 2: 25–50% | 19.0 | 8.6 | 30.9 | 26.5 | 20.6 |
| 3: 50–75% | 21.4 | 51.2 | 29.4 | 32.3 | 28.8 |
| 4: ≥75% (top) | 36.7 | 37.1 | 16.0 | 25.2 | 23.5 |
Note: Means (SD) are displayed for age and intellect. The current study only included the subjects who have verifiable and clear diagnosis (88.6% of the recruited samples). OP, other psychiatric; SPD, schizotypal personality disorders.
aIn the schizophrenia group, 29% were first-episode and 71% were chronic; bIn the other psychiatric group, among all recruited participants, 31.3% suffered from OCD, 21.3% had bipolar disorder (BD), 6.5% had comorbid OCD and BD, 17.8% had major depression disorder (MDD), 6.8% had mild cognitive impairment (MCI), 3.0% had attention deficit hyperactive disorder (ADHD), 1.9% had anxiety disorder (AD), and 11.4% had psychopathological conditions with unknown or unclear diagnostic category.