Table 3 Mean differences in SIPS symptom ratings
From: Heterogeneity of clinical symptomatology in pediatric patients at clinical high risk for psychosis
|  | Low APS group n = 15 | High APS group n = 23 | t-test | ||
|---|---|---|---|---|---|
M | SD | M | SD | ||
P1: Unusual thought content/delusional ideas | 1.73 | 1.28 | 3.35 | 1.15 | -4.04** |
P2: Suspicious/persecutory ideas | 1.33 | 1.23 | 3.09 | 1.47 | -3.81** |
P3: Grandiosity | 0.33 | 0.62 | 0.96 | 1.40 | -1.62 |
P4: Perceptual abnormalities/hallucinations | 3.53 | 1.46 | 4.09 | 0.90 | -1.45 |
P5: Disorganized communication | 0.87 | 1.13 | 3.26 | 1.32 | -5.78** |
N1: Social anhedonia | 1.13 | 1.19 | 1.91 | 1.83 | -1.46 |
N2: Avolition | 1.73 | 1.71 | 3.13 | 1.74 | -2.44* |
N3: Expression of emotion | 0.73 | 1.16 | 1.57 | 1.59 | -1.74 |
N4: Experience of emotions and self | 1.53 | 1.46 | 2.04 | 1.55 | -1.01 |
N5: Ideational richness | 0.93 | 1.28 | 2.00 | 1.57 | -2.20 |
N6: Occupational functioning | 1.40 | 1.18 | 2.70 | 1.82 | -2.44* |
D1: Odd behavior or appearance | 0.60 | 1.30 | 1.17 | 1.47 | -1.23 |
D2: Bizarre thinking | 0.33 | 0.72 | 1.22 | 1.31 | -2.38* |
D3: Trouble with focus and attention | 2.07 | 1.03 | 2.91 | 1.16 | -2.29* |
D4: Impairment in personal hygiene | 0.87 | 1.06 | 1.00 | 1.38 | -0.32 |
G1: Sleep disturbance | 1.40 | 1.35 | 2.22 | 1.38 | -1.80 |
G2: Dysphoric mood | 2.07 | 1.71 | 3.13 | 1.77 | -1.84 |
G3: Motor disturbances | 0.40 | 0.83 | 1.30 | 1.43 | -2.22* |
G4: Impaired tolerance to normal stress | 1.67 | 1.50 | 2.91 | 1.83 | -2.20* |