Table 1.
Sample characteristics
| Variable | Patients | Relatives | Controls | Group differences | p value for group effect |
|---|---|---|---|---|---|
| (n = 29) (%) | (n = 20) (%) | (n = 26) (%) | |||
| Gender (male) | 74.9 | 30.3 | 67.1 | SZC, C > R | < 0.001 |
| Origin | SZC ≠ R ≠ C | < 0.001 | |||
| British | 58.7 | 70 | 75.8 | ||
| Other European | 19.2 | 5 | 3.5 | ||
| African | – | 15 | 20.7 | ||
| South American | 3.9 | – | – | ||
| North American | 7.7 | 5 | – | ||
| Asian | 11.5 | 5 | – | ||
| Ethnicity | SZC ≠ R ≠ C | < 0.001 | |||
| Black | 61 | 25 | 8 | ||
| White | 25 | 45 | 61 | ||
| Indian | 4 | 15 | 27 | ||
| Other | 13 | 15 | 4 | ||
| Education | SZC ≠ R, C | < 0.001 | |||
| None/Primary | 17.3 | 5 | – | ||
| Secondary | 31 | – | 27 | ||
| College | 34.5 | 30 | 23 | ||
| University | 17.2 | 55 | 50 | ||
| Living status | SZC ≠ R, C | < 0.01 | |||
| Alone | 69 | 20 | 31 | ||
| Family/partner | 31 | 60 | 46 | ||
| Other | – | 20 | 23 |
| M (SD) | M (SD) | M (SD) | |||
|---|---|---|---|---|---|
| Age | 39.1 (9.9) | 37.27 (14.64) | 36.14 (8.13) | 0.60 | |
| Completed ESM beeps | 54 (10.3) | 45 (10.9) | 51 (11.12) | SZC = R, C, R ≠ C | 0.04 |
| ESM paranoia | 2.36 (1.27) | 1.85 (1.01) | 1.71 (0.95) | SZC ≠ R = C | 0.06 |
| PANSS P6 average (suspiciousness) | 2.67 (1.22) | ||||
| PANSS positive average | 1.85 (0.61) | ||||
| PANSS negative average | 2.17 (0.83) | ||||
| PANSS general average | 1.73 (0.36) |
SZC schizophrenia and other non-affective psychoses, C controls, R relatives, ESM experience sampling method, PANSS Positive and Negative Syndrome Scale