Table 3.
Visual hallucination phenomenology: North-East Visual Hallucination Interview (NEVHI) section 1 and clinician-rated
Diagnostic group | ||||||
---|---|---|---|---|---|---|
SCZ (n = 19), mean (s.d.) | PTSD (n = 17), mean (s.d.) | SCZ + PTSD (n = 20), mean (s.d.) | F(2,53) | P | Proportion experiencing the symptoms (%) | |
NEVHI section 1 | ||||||
Complex visual hallucinations | 0.6 (0.5) | 0.9 (0.2) | 0.8 (0.4) | 2.68 | 0.08 | 79 |
Illusions | 0.5 (0.5) | 0.4 (0.5) | 0.5 (0.5) | 0.43 | 0.65 | 45 |
Presence | 0.7 (0.5) | 0.8 (0.4) | 0.9 (0.4) | 0.73 | 0.49 | 77 |
Passing shadow | 0.6 (0.5) | 0.8 (0.4) | 0.7 (0.5) | 1.26 | 0.29 | 70 |
Other visual experiences | 0.4 (0.5) | 0.7 (0.5) | 0.6 (0.5) | 1.54 | 0.22 | 57 |
Simple visual hallucinations | 0.3 (0.5) | 0.4 (0.5) | 0.6 (0.5) | 1.66 | 0.20 | 45 |
Total | 3.1 (2.0) | 4.0 (1.5) | 4.0 (2.0) | 1.57 | 0.22 | 91 |
Clinician-rated | ||||||
Complex visual hallucinations | 0.4 (0.5) | 0.7 (0.5) | 0.6 (0.5) | 1.92 | 0.16 | 48 |
Simple visual hallucinations | 0.2 (0.4) | 0.5 (0.5) | 0.4 (0.5) | 1.60 | 0.21 | 36 |
Illusions | 0.8 (0.4) | 0.5 (0.5) | 0.7 (0.5) | 0.93 | 0.40 | 59 |
SCZ, schizophrenia; PTSD, post-traumatic stress disorder.