Table 2.
Demographic information for schizophrenia and control cohortsa
| Demographics | Schizophrenia (n = 45) | Controls (n = 45) | P value |
|---|---|---|---|
| Sex, M/F | 26/19 | 26/19 | χ2 = 0 (1, N = 90), P = 1.0 |
| Mean age, years ( ± SD) | 37.9 (1.6) | 38.1 (1.7) | U = 988.5, P = 0.9, Z = -0.2 |
| Age range, years | 21 to 65 | 21 to 65 | |
| Estimated premorbid IQ (JART50) | 100.8 (9.3) | 105.4 (8.4) | U = 687, P = 0.009, Z = -2.6 |
M: male, F: female, IQ: intelligence quotient; JART50: Japanese Adult Reading Test: Japanese version of the National Adult Reading Test. Data are means ± SD unless otherwise specified. Differences in clinical characteristics were analyzed using the χ2 test for gender and the Mann-Whitney U test for age.