Table 1.
Demographic characteristics of the GCSE sample (n = 3799), which is taken to be representative of the overall sample, by psychotic experiences and depression status at 12 years
| Variable | n (%) | Psychotic experiences at 12 years | Depression at 12 years | ||||
|---|---|---|---|---|---|---|---|
| No (%) | Yes (%) | OR (95% CI) | No (%) | Yes (%) | OR (95% CI) | ||
| Gender | |||||||
| Female | 1971 (51.9) | 1750 (51.5) | 221 (55.1) | 1853 (51.2) | 118 (64.5) | ||
| Male | 1828 (48.1) | 1648 (48.5) | 180 (44.9) | 0.86 (0.70–1.06) | 1763 (48.8) | 65 (35.5) | 0.58 (0.42–0.79) |
| Social classa | |||||||
| I | 592 (15.6) | 545 (16.0) | 47 (11.7) | 563 (15.6) | 29 (15.9) | ||
| II | 1759 (46.3) | 1561 (45.9) | 198 (49.4) | 1.47 (1.05–2.05) | 1672 (46.2) | 87 (47.5) | 1.01 (0.66–1.55) |
| III | 1316 (34.6) | 1175 (34.6) | 141 (35.2) | 1.39 (0.99–1.97) | 1254 (34.7) | 62 (33.9) | 0.96 (0.61–1.51) |
| IV–V | 132 (3.5) | 117 (3.4) | 15 (3.7) | 1.49 (0.80–2.75) | 127 (3.5) | 5 (2.7) | 0.76 (0.29–2.01) |
| Housing type | |||||||
| Mortgaged/owned | 3315 (87.3) | 2983 (87.8) | 332 (82.8) | 3161 (87.4) | 154 (84.2) | ||
| Council rented | 205 (5.4) | 171 (5.0) | 34 (8.5) | 1.79 (1.22–2.63) | 189 (5.2) | 16 (8.7) | 1.74 (1.02–2.97) |
| Private rented | 162 (4.3) | 138 (4.1) | 24 (6.0) | 1.56 (1.00–2.45) | 154 (4.3) | 8 (4.4) | 1.07 (0.51–2.21) |
| Other | 117 (3.1) | 106 (3.1) | 11 (2.7) | 0.93 (0.50–1.75) | 112 (3.1) | 5 (2.7) | 0.92 (0.37–2.28) |
| Maternal educationb | |||||||
| Less than O level | 698 (18.4) | 619 (18.2) | 79 (19.7) | 669 (18.5) | 29 (15.9) | ||
| O level | 1370 (36.1) | 1217 (35.8) | 153 (38.2) | 0.99 (0.74–1.31) | 1300 (36.0) | 70 (38.3) | 1.24 (0.80–1.93) |
| A level | 1093 (28.8) | 970 (28.6) | 123 (30.7) | 0.99 (0.74–1.34) | 1035 (28.6) | 58 (31.7) | 1.29 (0.82–2.04) |
| Degree or above | 638 (16.8) | 592 (17.4) | 46 (11.5) | 0.61 (0.42–0.89) | 612 (16.9) | 26 (14.2) | 0.98 (0.57–1.68) |
| IQ at 8c | |||||||
| < 100 | 1261 (33.2) | 1111 (32.7) | 150 (37.4) | 1201 (33.2) | 60 (32.8) | ||
| ≥ 100 | 2538 (66.8) | 2287 (67.3) | 251 (62.6) | 0.81 (0.66–1.01) | 2415 (66.8) | 123 (67.2) | 1.02 (0.74–1.40) |
| SDQ score at 8c | |||||||
| Normal range | 3703 (97.6) | 3315 (97.6) | 388 (96.8) | 3527 (97.5) | 176 (96.2) | ||
| Abnormal range | 96 (2.5) | 83 (2.4) | 13 (3.2) | 1.34 (0.74–2.42) | 89 (2.5) | 7 (3.8) | 1.58 (0.72–3.45) |
aHighest of either parent, with class I = highest and class V = lowest
bHighest educational level achieved
cVariable dichotomised only for the purpose of this table