Table 1.
Demographic characteristics, neurocognitive functions and illness related variables.
| SCZ (n = 114) | HCs (n = 63) | Statistics | ||
|---|---|---|---|---|
| Gender | 81 M–33 W | 32 M–31 W | χ2 = 7.214; p = 0.007 | |
| Mean ± SD | Mean ± SD | t/U | p | |
| Age | 36.86 ± 9.39 | 34.44 ± 12.48 | U = 2982.00 | 0.062 |
| Educational level (years) | 12.35 ± 3.02 | 13.98 ± 4.04 | U = 2759.00 | 0.0083 |
| BNSS Expressive Deficit Domain | 11.35 ± 7.27 | - | - | - |
| BNSS Experiential Domain | 21.11 ± 9.25 | - | - | - |
| PANSS Positive | 8.33 ± 4.74 | - | - | - |
| PANSS Disorganization | 8.60 ± 3.49 | - | - | - |
| CDSS Total score | 3.24 ± 3.92 | - | - | - |
| SHRS Global Parkinsonism | 0.86 ± 1.15 | - | - | - |
| MCCB SoP | 32.79 ± 10.42 | 48.79 ± 9.94 | t = −9.774 | <0.0001 |
| MCCB AV | 40.20 ± 10.27 | 51.67 ± 10.22 | t = −6.420 | <0.0001 |
| MCCB WM | 36.33 ± 11.78 | 50.60 ± 10.12 | t = −7.189 | <0.0001 |
| MCCB VrbLrn | 37.02 ± 11.03 | 52.13 ± 7.30 | t = −10.489 | <0.0001 |
| MCCB VisLrn | 31.86 ± 13.20 | 47.76 ± 11.19 | U = 1033.50 | <0.0001 |
| MCCB RPS | 38.53 ± 11.33 | 51.03 ± 8.75 | U = 1262.00 | <0.0001 |
AV: Attention vigilance; BNSS: Brief Negative Symptom Scale; CDSS: The Calgary Depression Scale for Schizophrenia; HCs: Healthy controls; MCCB: MATRICS Consensus Cognitive Battery; PANSS: Positive and Negative Syndrome Scale; RPS: Reasoning and Problem Solving; SCZ: subjects with schizophrenia; SD: Standard Deviation; SHRS: The St. Hans Rating Scale for extrapyramidal syndrome; SoP: Speed of processing; VisLrn: Visuo-spatial learning and memory; VrbLrn: Verbal Learning and memory; WM: working memory. p values in bold indicate statistical significance.