Table 1.
Sample Descriptive Statistics
| Variable | HN, n = 50 | BP, n = 50 | SZ, n = 50 | Comparison |
|---|---|---|---|---|
| Age: M (SD) | 38.6 (9.6) | 40.7 (11.2) | 40.5 (10.1) | SZ = HN; SZ = BP |
| Gender: % male | 50% | 44% | 64% | SZ = HN; SZ ≠ BP* |
| Handedness: % R | 92% | 90% | 92% | SZ = HN; SZ = BP |
| Substance use past 24 h: % used | ||||
| Nicotine | 33%a | 48% | 49%a | SZ ≠ HN*; SZ = BP |
| Alcohol | 4%a | 0% | 6%a | SZ = HN; SZ = BP |
| Drugs | 0%a | 2% | 4%a | SZ = HN; SZ = BP |
| PANSS: M (SD)b | ||||
| Positive | 15.9 (6.4) | |||
| Negative | 15.7 (4.4) | |||
| Cognitive | 5.6 (2.1) | |||
| Hostility | 8.9 (4.3) | |||
| Emotional | 64.3 (15.9) | |||
| Total | 64.3 (15.9) | |||
| MADRS: M (SD)c | 14.8 (9.1) | |||
| YMRS: M (SD)d | 18.1 (9.7) | |||
| Medication: % RX | ||||
| Atypicale | 0% | 34% | 66% | SZ ≠ BP** |
| Traditionale | 0% | 4% | 18% | SZ ≠ BP* |
| Anticholinergic | 0% | 8% | 16% | SZ = BP |
| Antidepressant | 0% | 16% | 26% | SZ = BP |
| Anticonvulsant | 0% | 42% | 20% | SZ ≠ BP* |
| Anxiolytic | 0% | 40% | 16% | SZ ≠ BP** |
| Withdrawn | NA | 36% | 18% | SZ ≠ BP* |
Note: HN, healthy normal; BP, bipolar; SZ, schizophrenia, R, right handed; RX, treatment prescribed; PANSS, Positive and Negative Syndrome Scale; MADRS, Montgomery-Asberg Depression Rating Scale; YMRS, Young Mania Rating Scale; NA, not applicable.
aData available for 49 participants.
bData available for 36 participants.
cData available for 44 participants.
dData available for 47 participants.
eClass of antipsychotic medication.
*P < .05, **P < .01 (two-tailed).