Table 1.
Demographic and cognitive variable for patients with schizophrenia (SP) and healthy controls (HC).
| SP mean (SD) | HC mean (SD) | p value | Cohen’s d | |
|---|---|---|---|---|
|
| ||||
| Demographics | ||||
| Age | 36.75 (13.31) | 35.68 (12.26) | p = 0.755 | 0.09 |
| Education Level* | 4.14 (1.51) | 4.71 (1.46) | p = 0.156 | −0.39 |
| Parental Education | 4.29 (2.24) | 4.68 (1.66) | p = 0.478 | −0.20 |
| Cognition Indices | ||||
| Attention/Inhibition | 44.33 (6.99) | 52.40 (3.70) | p = 0.000 | −1.46 |
| Learning/Memory | 37.04 (8.68) | 44.38 (9.78) | p = 0.006 | −0.81 |
| Working Memory | 41.46 (10.67) | 50.54 (8.38) | p = 0.001 | −0.96 |
| Processing Speed | 39.27 (9.72) | 55.12 (5.52) | p = 0.000 | −2.03 |
| Executive | 41.07 (7.58) | 49.88 (5.01) | p = 0.000 | −1.39 |
| Intelligence | ||||
| VIQ | 99.48 (13.69) | 108.15 (11.40) | p = 0.016 | −0.70 |
| PIQ | 104.93 (18.27) | 116.00 (10.31) | p = 0.009 | −0.76 |
| WTAR | 104.30 (12.99) | 111.58 (12.04) | p = 0.039 | −0.59 |
Abbreviations: VIQ = Verbal Intelligence Quotient; PIQ = Performance Intelligence Quotient; WTAR = Wechsler Test of Adult Reading
*
Education levels as follows: 1 = 6th grade education, 4 = high school graduate, 6 = college graduate