Table 1.
Demographic and clinical characteristics of subjects.
| Schizophrenia Patients (N=12) |
Controls (N=13) |
Statisticsa | |
|---|---|---|---|
| Demographic variables
|
|||
| Age (years) | 45.3 (10.8) | 46.2 (7.7) | −.24 |
| Education (years) | 13.8 (2.3) | 16.8 (3.8) | −2.31* |
| Parental education (years) | 13.7 (2.8) | 12.5 (2.6) | 1.04 |
| IQ estimate | 94.9 (13.2) | 113.4 (10.6) | −3.98* |
| % Male | 83 % | 76% | .16 |
|
| |||
| Clinical variables
|
|||
| Overall symptomatologyb | 44. 7 (9.4) | ||
| – | – | ||
| Psychosis symptom scorec | 1.9 (1.5) | ||
| – | – | ||
| Negative symptom scored | 1.7 (.9) | ||
| – | – | ||
| Disorganization symptom scorese | 2.3 (1.4) | ||
| – | – | ||
| Illness duration (years) | 24.8 (11.0) | ||
|
| |||
| Treatment variables
|
|||
| Medication (CPZ equivalent) | 641. 7 (445.1) | – | |
Note: Values are mean and standard deviation unless otherwise noted.
t(23) for continuous variables and χ2(1) for a discrete variable (i.e., % Male).
indicate significant group difference.
IQ was estimated using scores on the Vocabulary and Block Design Subtests of the WAIS-III.
Overall symptomatology score was computed as a total BPRS score (range: 24–168)
Psychosis symptom score was computed as the average global score for hallucinations and delusions in SAPS (range: 0 [none]-5 [severe]).
Negative symptom score was computed as the average global score for alogia, affective flattening, avolition-apathy, and anhedonia-asociality in SANS (range: 0 [none] - 5 [severe]).
Disorganization symptom score was the global score for positive formal thought disorder in SAPS (range: 0 [none] – 5 [severe]).