Table 1.
Demographic characteristics of patients with schizophrenia and healthy control subjects
| Variables | Patients (N=66)
|
Controls (N=66)
|
Statistical value
|
|||
|---|---|---|---|---|---|---|
| N or mean | % or SD | N or mean | % or SD | χ2 or t | P-value | |
| Age (years) | 41.24 | 10.06 | 41.24 | 10.09 | 0.000 | 1.000 |
| Sex | – | – | – | – | 0.000 | 1.000 |
| Male | 38 | 57.6 | 38 | 57.6 | – | – |
| Female | 28 | 42.4 | 28 | 42.4 | – | – |
| Marital status | – | – | – | – | 60.045 | <0.001* |
| Married | 6 | 9.1 | 50 | 75.8 | – | – |
| Not married | 60 | 90.9 | 16 | 24.2 | – | – |
| Occupation | – | – | – | – | 46.964 | <0.001* |
| Employed | 18 | 27.3 | 57 | 86.4 | – | – |
| Unemployed | 48 | 72.7 | 9 | 13.6 | – | – |
| Education (years) | 12.50 | 3.26 | 14.88 | 2.68 | −4.654 | <0.001* |
| BACS performance | – | – | – | – | – | – |
| Verbal memory | 26.21 | 11.09 | 41.36 | 9.50 | −8.430 | <0.001* |
| Working memory | 15.62 | 4.59 | 23.17 | 9.70 | −5.712 | <0.001* |
| Motor speed | 57.27 | 13.13 | 81.38 | 12.52 | −10.754 | <0.001* |
| Verbal fluency | 23.97 | 7.41 | 34.35 | 7.68 | −7.903 | <0.001* |
| Attention and processing speed | 38.45 | 13.53 | 61.35 | 12.67 | −10.037 | <0.001* |
| Executive function | 12.32 | 5.85 | 17.05 | 3.37 | −5.688 | <0.001* |
| Composite score (Z-score) | −1.94 | 1.10 | 0.02 | 0.72 | −12.088 | <0.001* |
Note:
*
P<0.001.
Abbreviations: BACS, Brief Assessment of Cognition in Schizophrenia; SD, standard deviation.