Table 2.
Descriptive statistics of the variables submitted to network analysis
| Domains and variables | Mean (SD) |
|---|---|
| Positive symptoms | |
| P1—Delusions | 2.41 (1.52) |
| P2—Conceptual disorganization | 1.69 (1.05) |
| P3—Hallucinations | 2.11 (1.53) |
| P4—Excitement | 1.33 (0.76) |
| P5—Grandiosity | 1.50 (1.00) |
| P6—Suspiciousness/persecution | 2.27 (1.41) |
| P7—Hostility | 1.32 (0.77) |
| Negative symptoms | |
| N1—Blunted affect | 2.35 (1.33) |
| N2—Emotional withdrawal | 2.13 (1.20) |
| N3—Poor rapport | 1.72 (1.02) |
| N4—Passive/apathetic social withdrawal | 2.27 (1.31) |
| N5—Difficulty in abstract thinking | 2.02 (1.28) |
| N6—Lack of spontaneity and flow of conversation | 1.90 (1.20) |
| N7—Stereotyped thinking | 1.59 (0.96) |
| General psychopathology | |
| G1—Somatic concern | 1.68 (1.81) |
| G2—Anxiety | 2.34 (1.27) |
| G3—Guilt feelings | 1.97 (1.25) |
| G4—Tension | 1.84 (1.03) |
| G5—Mannerisms and posturing | 1.30 (0.72) |
| G6—Depression | 2.47 (1.41) |
| G7—Motor retardation | 1.86 (1.11) |
| G8—Uncooperativeness | 1.23 (0.63) |
| G9—Unusual thought content | 2.04 (1.31) |
| G10—Disorientation | 1.19 (0.56) |
| G11—Poor attention | 1.73 (1.02) |
| G12—Lack of judgment and insight | 2.10 (1.39) |
| G13—Disturbance of volition | 1.59 (0.93) |
| G14—Poor impulse control | 1.31 (0.74) |
| G15—Preoccupation | 1.47 (0.89) |
| G16—Active social avoidance | 1.76 (1.08) |
| Motor symptoms | |
| Parkinsonism (Unified Parkinson’s Disease Rating Scale) | 0.21 (0.26) |
| Dyskinesia (Abnormal Involuntary Movement Scale) | 0.07 (0.18) |
| Akathisia (Barnes Akathisia Rating Scale) | |
| 0 (absent) | 796 (79%) |
| 1 (questionable) | 109 (11%) |
| 2 (mild or more severe) | 102 (10%) |
| Cognition | |
| Processing speed: WAIS-III Digit Symbol Substitution Test | 7.41 (3.01) |
| World knowledge: WAIS-III Information | 10.65 (3.09) |
| Working memory: WAIS-III Arithmetic | 9.50 (3.26) |
| Reasoning and problem solving: WAIS-III Block design | 9.60 (3.36) |
| Verbal learning and memory: Word Learning Task, delayed recall | 7.54 (2.88) |
| Attention/vigilance: Continuous Performance Task HQ | 26.43/28 (2.77) |
| Reasoning and problem solving: Response Set-shifting Taska | 0.20 (0.27) |
| Social cognition (emotional face recognition): Degraded Facial Affect Recognition Test | 68.76 (10.53) |
| Social cognition (facial recognition): Benton Facial Recognition Test | 22.77 (2.29) |
| Social cognition (theory of mind): hinting task | 17.52 (2.79) |
aScores were transformed to the symmetrical distribution so that they could have the same meaning as the other cognitive variables (ie, higher score means better performance).