Table 1.
Demographic and descriptive data
| Schizophrenia | Controls | Statistic | |
|---|---|---|---|
| Sex (% male) | 71.4% | 66.7% | X2 (1,42) = 0.11 |
| Age (s.d.) | 48.2 (10.4) | 46.5 (7.1) | t(40) = 0.63 |
| Ethnicity | X2 (4,42) = 1.53 | ||
| Hispanic | 23.8% | 9.5% | |
| Not Hispanic | 76.2% | 90.5% | |
| Race | X2 (4,42) = 1.61 | ||
| African American | 42.9% | 33.3% | |
| White | 21.4% | 66.7% | |
| Asian | 4.8% | ||
| Marital status | |||
| Never married | 65.2% | 34.8% | X2 (2,58) = 4.73** |
| Currently married | 8.7% | 26.1% | |
| Ever married | 26.1% | 39.1% | |
| Education (s.d.) | 13.3 (1.6) | 15.1 (1.6) | t(40) = − 3.63*** |
| Parental education (s.d.) | 13.2 (3.7) | 14.8 (3.0) | t(40) = 1.46 |
| Handedness (% right) | 90.5% | 85.7% | X2 (1,42) = 0.23 |
| Age of onset (s.d.) | 22.1 (4.8) | ||
| Duration of illness (s.d.) | 26.1 (12.2) | ||
| Chlorpromazine equivalent units (s.d.) | 282.51 (162.49) | ||
| BPRS | |||
| Positive symptoms (s.d.) | 1.5 (0.5) | ||
| Negative symptoms (s.d.) | 1.6 (0.8) | ||
| Total (s.d.) | 33.8 (6.5) |
Notes: **P < 0.01; ***P < 0.001. Chlorpromazine equivalent units based on the procedures described by Andreasen et al. (2010).