Variable | Â | Black Descent | White Descent | P-values |
---|---|---|---|---|
 |  | (N = 372) | (N = 602) |  |
Gender | Male | 264 (71.0%) | 399 (66.3%) | 0.132 |
 | Female | 108 (29%) | 203 (33.7%) |  |
Age (yrs) | Mean | 39.96 | 39.79 | 0.514 |
 | SD | 9.48 | 10.91 |  |
 | Median | 40.49 | 39.85 |  |
Weight (kg) | Mean | 86.62 | 84.01 | 0.257 |
 | SD | 21.93 | 20.73 |  |
 | Median | 82.43 | 81.12 |  |
BMI (kg/m2) | Â | N = 362 | N = 596 | 0.587 |
 | Mean | 29.06 | 28.47 |  |
 | SD | 6.95 | 6.51 |  |
 | Median | 28.15 | 27.33 |  |
Geographic Region | USA | 324 (87%) | 416 (69.1%) | <0.001 |
 | Europe | 4 (1.1%) | 107 (17.8% |  |
 | South America | 37 (10%) | 76 (12.6%) |  |
 | Other | 7 (1.9%) | 3 (0.5%) |  |
PANSS Total | Mean | 88.15 | 89.27 | 0.528 |
 | SD | 15.45 | 17.66 |  |
 | Median | 87.0 | 88 |  |
PANSS Positive | Mean | 21.31 | 21.08 | Â |
 | SD | 5.05 | 5.98 |  |
 | Median | 21.5 | 21 |  |
Diagnosis | Schizophrenia | 322 (86.6%) | 459 (76.3%) | <0.001 |
 | Schizoaffective | 50 (13.4%) | 139 (23.1%) | <0.001 |
 | Schizophreniform | 0 (0%) | 4 (0.7%) | 0.298 |
CGI Score | Mean | N = 329 | N = 505 | 0.002 |
 | SD | 4.42 | 4.60 |  |
 | Median | 0.69 | 0.78 |  |
 |  | 4.00 | 4.00 |  |
# Previous Episodes | Â | N = 184 | N = 341 | 0.296 |
 | Mean | 8.53 | 7.07 |  |
 | SD | 7.53 | 8.98 |  |
 | Median | 6.0 | 4.0 |  |
Illness Duration | Â | N = 368 | N = 600 | 0.547 |
 | Mean | 16.83 | 15.92 |  |
 | SD | 10.38 | 10.43 |  |
 | Median | 15.45 | 15.17 |  |