Table 1.
Participant Characteristics
| Characteristics | Healthy Controls (N=30) | Individuals with Schizophrenia (N=33) | |||
|---|---|---|---|---|---|
|
| |||||
| Demographics | Mean | SD | Mean | SD | p-value |
| Age (years) | 35.9 | 8.2 | 36.7 | 9.25 | 0.72 |
| Sex (% male) | 46.7% | 51.5% | 0.70 | ||
| Ethnicity | |||||
| African-American | 58.0% | 56.7% | |||
| Caucasian | 42.0% | 43.3% | |||
| Personal Education (years) | 15.2 | 2.7 | 12.8 | 2.3 | <0.001 |
| Parental Education (years) | 14.4 | 2.6 | 14.4 | 3.50 | 0.97 |
| Medication status | |||||
| Atypical antipsychotics (%) | NA | 55% | |||
| Typical antipsychotics (%) | NA | 3% | |||
| Typical and atypical (%) | NA | 6% | |||
| Medicated (no antipsychotics) | 15% | ||||
| Not Medicated (%) | NA | 21% | |||
| Olanzapine Equivalent Dose | NA | 14.7 | 9.2 | ||
| Clinical ratings | |||||
| Brief Negative Symptom Scale | |||||
| Total Score | NA | 24.5 | 13.2 | ||
| Avolition/Anhedonia Subscale | NA | 16.0 | 8.8 | ||
| Self-Report | |||||
| Snaith Hamilton Pleasure Scale | 50.7 | 5.9 | 43.5 | 10.5 | 0.001 |
| Neurocognitive Measures | |||||
| Wechsler Test of Adult Reading | 101.2 | 14.3 | 98.3 | 12.0 | 0.39 |