Table 1.
Characteristics of study population
| Variables | Control | SPD | Schizophrenia |
|---|---|---|---|
| Age | 36.4±10.5 | 39.2±11.9 | 36.8±12.8 |
| Sex (male/female) | 14/5 | 10/9 | 17/4 |
| Education (years) | 14.2±2.2 | 13.1±1.8 | 11.1±1.3 a |
| WAIS-R subtasks | |||
| Picture completion | 11.3±5.9 | 9.2±4.1 | 6.9±2.8 b |
| Similarities | 10.5±5.0 | 9.4±3.8 | 7.4±2.1 c |
| Digit symbol | 9.3±3.6 | 9.1±3.0 | 5.4±2.4 a |
| Digit span | 10.4±3.0 | 9.1±3.4 | 7.0±3.0 b |
| SPQ total score | 17.1±11.7 | 36.8±12.6 b | 33.9±22.1 d |
| Duration of illness (years) |
15.0 ±12.1 | ||
| PANSS total score | 59.5±13.3 | ||
| Positive score | 17.5±6.0 | ||
| Negative score | 14.6±3.8 | ||
| General score | 27.4±6.8 |
Values represent means ± SDs. SPQ: Schizotypal Personality Questionnaire; PANSS: Positive and Negative Syndrome Scale. ANOVA followed by Tukey’s test was used to test for group differences.
a
p < 0.001: compared to healthy control and p<0.005 compared to SPD.
b
p < 0.005: compared to healthy control.
c
p < 0.05: compared to healthy control.
d
p < 0.01: compared to healthy control.