Table 2.
Severity of structured interview of prodromal syndromes (SIPS) assessed symptoms and symptom domains.
| Total (n = 248) | APS (n = 65) | Non-APS (n = 183) | P-value | Effect size | |
|---|---|---|---|---|---|
| Structured interview of prodromal syndromes mean± SD | |||||
| Positive symptoms | |||||
| Total positive symptom score | 3.2 ± 4.1 | 7.4 ± 4.6 | 1.9 ± 3.3 | <0.001 | 1.5 |
| Highest positive symptom score | 1.8 ± 1.8 | 3.5 ± 1.3 | 1.2 ± 1.6 | <0.001 | 1.5 |
| P1 unusual thought content | 0.73 ± 1.4 | 1.6 ± 1.6 | 0.41 ± 1.1 | <0.001 | 0.95 |
| P2 suspiciousness | 0.84 ± 1.3 | 1.8 ± 1.6 | 0.48 ± 0.93 | <0.001 | 1.2 |
| P3 grandiosity | 0.54 ± 1.2 | 0.89 ± 1.5 | 0.41 ± 1.1 | 0.024 | 0.39 |
| P4 perceptual abnormalities/hallucinations | 0.99 ± 1.7 | 2.3 ± 1.9 | 0.47 ± 1.2 | <0.001 | 1.3 |
| P5 disorganized communication | 0.29 ± 0.86 | 0.63 ± 1.1 | 0.16 ± 0.68 | <0.001 | 0.58 |
| Negative symptoms | |||||
| Total negative symptom score | 8.0 ± 6.22 | 10.4 ± 6.7 | 7.1 ± 5.8 | <0.001 | 0.55 |
| Highest negative symptom score | 3.4 ± 1.83 | 3.8 ± 1.6 | 3.2 ± 1.9 | 0.012 | 0.33 |
| N1 social anhedonia | 1.5± 1.79 | 2.2 ± 1.9 | 1.2 ± 1.7 | <0.001 | 0.57 |
| N2 avolition | 2.1 ± 2.0 | 2.9 ± 1.7 | 1.9 ± 2.0 | 0.002 | 0.51 |
| N3 expression of emotions | 0.88 ± 1.5 | 1.2 ± 1.6 | 0.75 ± 1.4 | 0.061 | 0.31 |
| N4 experience of emotions and self | 0.87 ± 1.7 | 1.6 ± 2.3 | 0.65 ± 1.4 | <0.001 | 0.54 |
| N5 ideational richness | 0.20 ± 0.65 | 0.18 ± 0.18 | 0.21 ± 0.75 | 0.88 | 0.050 |
| N6 occupational functioning | 2.4 ± 2.1 | 2.5 ± 2.4 | 2.3 ± 2.0 | 0.31 | 0.11 |
| Disorganized symptoms | |||||
| Total disorganized symptom score | 3.1 ± 3.2 | 4.3 ± 3.7 | 2.7 ± 2.9 | <0.001 | 0.51 |
| Highest disorganized symptom score | 2.2 ± 1.9 | 2.9 ± 1.7 | 2.03 ± 1.9 | 0.003 | 0.47 |
| D1 odd behavior or appearance | 0.16 ± 0.94 | 0.14 ± 1.4 | 0.17 ± 0.71 | 0.297 | −0.03 |
| D2 bizarre thinking | 0.18 ± 0.7 | 0.48 ± 1.1 | 0.08 ± 0.4 | <0.001 | 0.60 |
| D3 trouble with focus and attention | 1.9 ± 1.8 | 2.6 ± 1.7 | 1.66 ± 1.81 | 0.001 | 0.53 |
| D4 impairment in personal hygiene | 0.76 ± 1.7 | 0.86 ± 2.1 | 0.73 ± 1.54 | 0.45 | 0.08 |
| General symptoms | |||||
| Total general symptom score | 8.4 ± 4.5 | 11.0 ± 3.5 | 7.5 ± 4.4 | <0.001 | 0.84 |
| Highest general symptom score | 4.3 ± 1.7 | 5.0 ± 1.1 | 4.1 ± 1.8 | <0.001 | 0.55 |
| G1 sleep disturbance | 2.3 ± 1.9 | 2.8 ± 2.0 | 2.1 ± 1.8 | 0.002 | 0.38 |
| G2 dysphoric mood | 4.0 ± 2.1 | 4.5 ± 2.3 | 3.8 ± 2.0 | 0.004 | 0.34 |
| G3 motor disturbance | 0.14 ± 0.80 | 0.17 ± 1.4 | 0.13 ± 0.52 | 0.73 | 0.05 |
| G4 impaired stress tolerance | 1.9 ± 2.1 | 2.9 ± 2.3 | 1.6 ± 1.9 | <0.001 | 0.63 |
Bold values indicate p <0.05 for between-groups analysis.