Table 1.
Demographics
| Full Sample Comparison | ||||
|
| ||||
| White Total (n=450) | Black Total (n=388) | Statistics (t or χ2)* | p-value * | |
| Sex (male/female) | 224/226 | 224/164 | 4.99 | 0.03 |
| Age Years, SD | 37.82(11.37) | 39.56(11.39) | 2.21 | 0.03 |
| Education Years, SD | 14.49(3.10) | 12.29(2.54) | 10.10 | < 0.01 |
|
| ||||
| White Participant Group | ||||
| Control (n=222) | SZ-Spectrum (n=135) | High Risk (n=40) | Psychiatric Control (n=53) | |
| Sex (male/female) | 96/126 | 78/57 | 15/25 | 35/18 |
| Age Years, SD | 36.50(11.21) | 37.43(11.13) | 40.78(13.05) | 42.11(10.11) |
| Education Years, SD | 15.47(2.50) | 13.39(3.27) | 15.04(4.06) | 13/68(2.60) |
| Black Participant Group | ||||
| Control (n=110) | SZ-Spectrum (n=185) | High Risk (n=55) | Psychiatric Control (n=38) | |
| Sex (male/female) | 59/51 | 116/69 | 24/31 | 25/13 |
| Age Years, SD | 37.19(11.77) | 40.08(11.07) | 40.14(12.62) | 43.03(8.71) |
| Education Years, SD | 13.42(2.98) | 11.95(2.44) | 11.69(1.88) | 12.02(1.88) |
Control = individuals with no current or past psychiatric diagnosis, SZ-Spectrum = individuals on the schizophrenia spectrum (i.e., schizophrenia, schizoaffective disorder, or schizotypal personality disorder [SPD]), High Risk = individuals with subthreshold SPD and relatives of individuals with psychosis, Psychiatric Control = individuals with a non-schizophrenia spectrum diagnosis (e.g., mood, anxiety, or substance).
*
Comparison between full sample within White and Black Participant groups.