Table 2.
Baseline Demographic and Clinical Characteristics of the Whole CHR Sample and Healthy Controls
| Healthy Control Group (n = 92) | CHR Group (n = 262) | P Value | |
|---|---|---|---|
| Sex, N | |||
| Male | 47 | 138 | .0.83 |
| Female | 45 | 124 | |
| Age in years, mean (SD) | 23.7 (4.2) | 22.6 (4.8) | .09 |
| Education in years, mean (SD) | 16.0 (2.9) | 14.6 (2.9) | <.001 |
| Ethnicity | |||
| Caucasian | 65 | 191 | <.001 |
| Black | 10 | 27 | |
| Asian | 11 | 4 | |
| Others | 6 | 40 | |
| Antipsychotic medication, N | |||
| Yes | 0 | 28 | NA |
| No | 92 | 234 | |
| Antidepressant medication, N | |||
| Yes | 0 | 81 | NA |
| No | 92 | 181 | |
| Cannabis use, N | |||
| Yes | 25 | 90 | .96 |
| No | 43 | 157 | |
| Handedness | |||
| Right | 66 | 159 | .28 |
| Left | 6 | 23 |
Note: CHR, clinical high risk; NA, not available; SD, standard deviation.
Significant differences are highlighted in bold.