Table 1 Characteristics of the sample
Healthy controls | CHR individuals | |
|---|---|---|
Total N | 37 | 62 |
Age | ||
Mean (s.e.m.) | 21.6 (0.5) | 20.9 (0.4) |
Gender N (%) | ||
Male | 23 (62) | 47 (76) |
Female | 14 (38) | 15 (24) |
Ethnicity N (%) | ||
Caucasian | 19 (51) | 28 (45) |
African-American | 9 (24) | 13 (21) |
Asian-American | 3 (8) | 6 (10) |
Native American | 1 (3) | 0 (0) |
More than one race | 5 (14) | 15 (24) |
Country of birth N (%) | ||
USA | 31 (84) | 53 (86) |
Other | 6 (16) | 9 (15) |
Employment/education N (%) a | ||
Full-time work or school | 12 (32) | 5 (8) |
Part-time work or school (<30 h) | 20 (54) | 37 (60) |
Out of work or unemployed | 5 (14) | 20 (32) |
Symptoms (mean (s.e.m.)) | ||
SOPS total positivea | 0.8 (0.2) | 12.8 (0.6) |
SOPS total negativea | 1.0 (0.3) | 13.9 (0.9) |
IQ | ||
NIQ | 24 | 38 |
Mean (s.e.m.) | 111.4 (2.5) | 112.9 (2.6) |
Medications N (%) | ||
Antipsychoticsa | 0 (0) | 8 (12.9) |
Antidepressantsa | 0 (0) | 15 (24.2) |
