Table 1.
Demographic Information for the Samples
| Full Sample (Scale Structure; Internal Consistency; Concurrent Validity) | Subsample 1 (Test-Retest Validity) | Subsample 2 (Construct Validity) | ||||
|---|---|---|---|---|---|---|
| Groups | Psychosis | Depression | Controls | Psychosis | Controls | Psychosis |
| N (country: G = Germany N = Norway) | 265 (158 UK; 88 G; 19 N) | 34 (UK) | 33 (G) | 30 (UK) | 30 (G) | 42 (UK) |
| Gender | 158 M | 7 M | 17 M | 19 M | 15 M | 28 M |
| 107 F | 27 F | 16 F | 11 F | 15 F | 14 F | |
| Age, mean (SD) | 37 (10.6) | 44.9 (10.2) | 32.7 (10.7) | 37.5 (9.3) | 33.0 (10.9) | 38.2 (11.6) |
| N (%) with hallucinations | 106a (49%) | — | — | 15 (50%) | — | —b |
| PSYRATS-voices | 22.7 (10.9) | — | — | 27.8 (7.5) | — | —b |
| N (%) with delusions | 176c (68%) | — | — | 20 (67%) | — | 42 (100%) |
| PSYRATS-delusions | 15.0 (4.4) | — | — | 14.9 (5.2) | — | 15.7 (3.6) |
| BDI, mean (SD) | 26.4d (15.1) | 26.4 (12.7) | — | 27.9 (14.3) | — | —b |
| BAI, mean (SD) | 20.9d (13.3) | 18.7 (12.2) | — | 18.9 (11.6) | — | —b |
Note: PSYRATS, Psychotic Symptoms Ratings Scales; BDI, Beck depression; BAI; Beck anxiety inventories.
a48 individuals (UK) had missing data on PSYRATS-Voices.
bPSYRATS-Voices, BDI and BAI scores were not available for this subsample.
c7 individuals (UK) had missing data on PSYRATS-Delusions.
dThere were available data on the BDI and BAI for 109 (UK) psychotic patients.