Table 1.
Sample Characteristics at Study Entry for Recent-Onset Schizophrenia Patients (n = 71) and Age-Matched Controls (n = 20)
| Patients | Controls | Test Statistics | P Value | |
|---|---|---|---|---|
| Age | 21.68 (3.29) | 21.80 (1.96) | t = 0.2 | .87 |
| Education | 12.49 (1.82) | 13.30 (1.22) | t = 1.9 | .06 |
| Parental education | 14.05 (3.79) | 14.50 (1.88) | t = 0.4 | .10 |
| Male | 56 (80%) | 9 (75%) | χ 2(1) = 0.1 | .70 |
| Marital status | χ 2(1) = 1.0 | .32 | ||
| Single | 95% | 100% | ||
| Married | 5% | |||
| Race | χ 2(5) = 8.3 | .14 | ||
| Caucasian | 38 (54%) | 9 (75%) | ||
| African American | 17 (21%) | 1 (8%) | ||
| Asian | 6 (9%) | 0 | ||
| Pacific Islander | 2 (3%) | 1 (8%) | ||
| Native American | 4 (6%) | 0 | ||
| Mixed/Other | 3 (4%) | 1 (8%) | ||
| Ethnicity | ||||
| Hispanic | 29 (41%) | 4 (33%) | χ 2(1) = 0.3 | .59 |
| Diagnosis | — | — | — | |
| Schizophrenia | 51% | |||
| Schizoaffective | 11% | |||
| Schizophreniform | 38% | |||
| Mean number of months since psychosis onset | 5.92 (6.27) | — | — | — |
| Premorbid history | 2.13 (1.71) | — | — | — |
| SANS | — | — | — | |
| Total SANS | 1.98 (1.02) | |||
| Experiential symptoms | 2.32 (1.31) | |||
| Expressive symptoms | 1.63 (1.17) | |||
| MCCB composite score | 31.81 (12.84) | 43.5 (7.21) | t = −3.7 | < .01 |
| RFS Global Role Functioning Index | 16.35 (5.26) | 24.05 (3.08) | t = −6.1 | < .01 |
Note : MCCB, MATRICS Consensus Cognitive Battery; RFS, Role Functioning Scale; SANS, Scale for the Assessment of Negative Symptoms.