Table 1.
Sample descriptive statistics
| SZ (n=40) | HC (n=12) | |||||
|---|---|---|---|---|---|---|
| Variable | Mean | (SD) | Mean | (SD) | T-score (df=50) | p-valueb |
| Age | 46.10 | 12.41 | 43.33 | 13.22 | 0.67 | 0.510 |
| Age of Onset | 20.84 | 6.70 | - | - | ||
| Hospitalizations (#) | 13.77 | 25.08 | - | - | ||
| PANSS total | 56.87 | 13.22 | - | - | ||
| Positive | 16.20 | 5.80 | - | - | ||
| Negative | 13.07 | 4.78 | - | - | ||
| General | 27.60 | 7.18 | - | - | ||
| Antipsychotic CPZ Eq | 578.81 | 404.73 | - | - | ||
| Antipsychotic Any | 37 of 40 | - | - | - | ||
| Traditional only | 9 of 37 | - | - | - | ||
| Atypical only | 25 of 37 | - | - | - | ||
| SWMT total | 63.33 | 11.02 | 75.58 | 7.62 | 3.59 | 0.001 |
| WTAR FSIQ | 91.45 | 13.98 | 100.73 | 15.82 | 1.90 | 0.064 |
| CPT-IPa | 38.03 | 11.61 | 42.75 | 11.66 | 1.24 | 0.220 |
| MCCB WM Compositea | 37.18 | 10.80 | 46.67 | 8.99 | 2.77 | 0.008 |
| % | % | c2 (df=1) | p-valueb | |||
| Gender (Male) | 57.50 | - | 50.00 | - | 0.21 | 0.646 |
| Race (Caucasian) | 35.00 | - | 58.00 | - | 1.23 | 0.267 |
| Handedness (Right) | 85.00 | - | 100.00 | - | 2.04 | 0.362 |
PANSS: Positive and Negative Syndrome Scale, CPZ Eq: chlorpromazine equivalent, SWMT: Sternberg Working Memory Task, WTAR: Wechsler Test of Adult Reading, CPT-IP: Continuous Performance Test-Identical Pairs, MCCB: MATRICS Cognitive Composite Battery
a
Age, education, and gender corrected t-scores reported according to MCCB normative sample
b
Statistic reported based on two-tailed test