Table 1.
Basic sociodemographic and diagnostic characteristics by case-control status.
| Controls (n = 391) | Cases (n = 390) | t | df | p | |||
|---|---|---|---|---|---|---|---|
| Age | |||||||
| Mean | 37.3 | 30.5 | 8.20 | 779 | <0.001 | ||
| Sd | 12.5 | 10.8 | |||||
| Self-esteem* | |||||||
| Mean | 39.2 | 36.2 | 4.48 | 533 | <0.001 | ||
| Sd | 7.6 | 7.8 | |||||
| n (%) | n (%) | χ 2 | df | p | |||
|
| |||||||
| Sex | |||||||
| Male | 161 | (41.2) | 218 | (55.9) | 16.94 | 1 | <0.001 |
| Female | 230 | (58.8) | 172 | (44.1) | |||
| Ethnicity | |||||||
| White British | 240 | (61.4) | 177 | (45.4) | 35.21 | 5 | <0.001 |
| Other White | 42 | (10.7) | 28 | (7.2) | |||
| African-Caribbean | 74 | (18.9) | 107 | (27.4) | |||
| Black African | 22 | (5.6) | 43 | (11.0) | |||
| Asian (all) | 8 | (2.1) | 22 | (5.6) | |||
| Other | 5 | (1.3) | 13 | (3.3) | |||
| Parental separation and loss | |||||||
| None | 297 | (76.0) | 200 | (51.3) | 51.4 | 2 | <0.001 |
| Separation | 80 | (20.4) | 160 | (41.0) | |||
| Loss of parent | 14 | (3.6) | 30 | (7.7) | |||
| Current disadvantage index | |||||||
| 0 | 121 | (21.2) | 24 | (6.2) | 127.8 | 5 | <0.001 |
| 1 | 99 | (25.5) | 62 | (16.0) | |||
| 2 | 72 | (18.6) | 99 | (25.5) | |||
| 3 | 67 | (17.3) | 107 | (27.6) | |||
| 4 | 25 | (6.4) | 57 | (14.7) | |||
| 5 | 4 | (1.0) | 39 | (10.1) | |||
| Education | |||||||
| No qualifications | 71 | (18.3) | 124 | (32.0) | 19.2 | 1 | <0.001 |
| Any qualifications | 317 | (81.7) | 264 | (68.0) | |||
| Parental history of psychosis | |||||||
| No | 384 | (98.2) | 312 | 85.5 | 41.9 | 1 | <0.001 |
| Yes | 7 | (1.79) | 53 | 14.5 | |||
| Diagnosis | |||||||
| Non-affective psychosis | - | - | 263 | (67.4) | - | - | - |
| Affective psychosis | - | - | 127 | (32.6) | - | - | - |
*
sample size n = 535 (240 cases, 295 controls)