Table 1.
Demographic and clinical characteristics of SPD patients and healthy controls.
| Characteristic | SPD patients (n = 76) | Healthy controls (n = 148) | Analysis | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Range | Mean | SD | Range | t | df | p | |
| Age (years) | 38.0 | 10.2 | 19–62 | 35.5 | 13.0 | 17–65 | −1.44 | 222 | 0.15 |
| Relative striatal size | 1.04 | 0.13 | 0.78–1.31 | 1.02 | 0.12 | 0.75–1.36 | −1.42 | 222 | 0.16 |
| Symptom severity | 6.8 | 1.1 | 5–10 | ||||||
| Cognitive/perceptual | 1.5 | 0.9 | 0–4 | ||||||
| Interpersonal (negative) | 2.9 | 0.9 | 1–5 | ||||||
| Paranoid (positive) | 2.4 | 0.9 | 1–5 | ||||||
| n | % | n | % | ||||||
| Sex | χ2 | df | p | ||||||
| Male | 60 | 79 | 99 | 67 | 3.54 | 1 | 0.06 | ||
| Female | 16 | 21 | 49 | 33 | |||||