Table 1.
Demographics, clinical characteristics and task performance of study groups.
| Healthy participants |
Patients |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Preserved insight group | Poor insight group | |||||||||
| n=16; (13M:3F) | n=13; (11M:2F) | n=13; (9M:4F) | ||||||||
| Demographics | Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | ||||
| Age (years) | 31.81 (9.36) | 20–59 | 31.15 (9.77) | 19–52 | 37.85 (7.43) | 26–49 | ||||
| Education (years) | 15.81 (2.76) | 11–20 | 13.38 (2.93) | 9–20 | 13.54 (2.30) | 11–19 | ||||
| Predicted IQ (NART)a | 115.67 (8.65) | 95–128 | 110.04 (10.50) | 86–122 | 106.92 (9.66) | 90–124 | ||||
| Clinical characteristics | ||||||||||
| bBIS insight score | 13.61 (0.62) | 13–14 | 5.97 (1.69) | 2–8 | ||||||
| Age at illness onset (years) | 21.23 (7.06) | 12–38 | 22.69 (5.68) | 10–31 | ||||||
| Duration of illness (years) | 9.92 (7.22) | 1–30 | 15.15 (9.64) | 1–24 | ||||||
| cPositive symptoms | 18.15 (5.10) | 10–25 | 16.23 (4.44) | 8–22 | ||||||
| cNegative symptoms | 18.31 (5.12) | 7–27 | 17.85 (6.84) | 8–27 | ||||||
| cGeneral psychopathology | 35.46 (7.95) | 26–56 | 30.62 (6.96) | 21–40 | ||||||
| cTotal symptoms | 71.92 (15.87) | 44–108 | 64.69 (16.11) | 37–86 | ||||||
| Antipsychotic dose (chlorpromazine equivalent in mg) | 467.08 (400.46) | 160–1600 | 623.80 (392.59) | 200–1367 | ||||||
| Antipsychotic type | 10 patients on atypical, 1 on typical and 2 on both types | 7 patients on atypical, 4 on typical and 2 on both types | ||||||||
|
*Performance |
Percentage correct |
RT (s) |
Percentage correct |
RT (s) |
Percentage correct |
RT (s) |
||||
| Mean (SD) |
Mean (SD) |
Mean (SD) |
Mean (SD) |
Mean (SD) |
Mean (SD) |
|||||
| Self | 92.58 (6.54) | 1.66 (0.36) | 91.83 (5.34) | 2.30 (0.66) | 80.29 (19.74) | 2.62 (0.88) | ||||
| Self-distorted | 78.13 (27.58) | 2.00 (0.34) | 57.69 (35.28) | 2.65 (0.55) | 63.94 (31.99) | 2.55 (0.68) | ||||
| Other | 85.15 (19.62) | 1.96 (0.52) | 72.60 (21.12) | 2.60 (0.38) | 67.31 (25.66) | 2.64 (0.69) | ||||
| Other-distorted | 56.64 (26.95) | 2.27 (0.68) | 61.54 (31.23) | 2.88 (0.66) | 51.44 (28.32) | 3.02 (0.82) | ||||
| Total | 78.13 (2.41) | 1.97 (0.42) | 70.91 (2.22) | 2.61 (0.48) | 65.75 (4.78) | 2.71 (0.73) | ||||
RT= Reaction time for correct responses.
a
National Adult Reading Test.
b
Birchwood insight scale (BIS).
c
PANSS: Positive and Negative Symptom Scale.