Table 1.
Demographic and clinical characteristics.
| Characteristic | Schizophrenia spectrum disorders (n=41) | Bipolar disorder (n=21) | Healthy volunteers (n=27) | Full sample (n=89) | |||||
| Age (in years), mean (SD) | 23.7 (3.97) | 25.3 (4.24) | 28.5 (5.15) | 25.5 (4.83) | |||||
| Sex, n (%) |
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Male | 29 (71) | 7 (33) | 12 (44) | 48 (54) | ||||
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Female | 12 (29) | 14 (67) | 15 (56) | 41 (46) | ||||
| Race/ethnicity, n (%) | |||||||||
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African American/Black | 24 (58) | 3 (14) | 8 (30) | 35 (39) | ||||
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Asian | 6 (15) | 4 (19) | 6 (22) | 16 (18) | ||||
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Caucasian | 10 (24.) | 9 (43) | 10 (37) | 29 (33) | ||||
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Mixed race/other | 1 (2) | 5 (24) | 2 (7) | 8 (9) | ||||
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Pacific Islander | 0 (0) | 0 (0) | 1 (4) | 1 (1) | ||||
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Hispanic | 5 (12) | 3 (14) | 1 (4) | 9 (10) | ||||
| Diagnosis (most recent episode), n (%) | |||||||||
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Schizophrenia | 19 (46) | N/Aa | N/A | 19 (21.) | ||||
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Schizophreniform | 10 (24) | N/A | N/A | 10 (11) | ||||
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Schizoaffective | 7 (17) | N/A | N/A | 7 (8) | ||||
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Unspecified schizophrenia spectrum disorders | 5 (12) | N/A | N/A | 5 (6) | ||||
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Bipolar disorder (manic) | N/A | 16 (76) | N/A | 16 (18) | ||||
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Bipolar disorder (depressed) | N/A | 3 (14) | N/A | 3 (3) | ||||
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Bipolar disorder (mixed) | N/A | 2 (10) | N/A | 2 (2) | ||||
| Interviews, n |
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Baseline | 41 | 21 | 27 | 89 | ||||
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Follow up | 33 | 17 | 7 | 57 | ||||
| Interview length, mean (SD) | 29.5 (13.1) | 29.5 (9.3) | 20.7 (6.1) | 27 (11) | |||||
aN/A: not applicable.