Table 1 Descriptive data for early alcohol initiation, heavy alcohol consumption and illicit drug use.
| Early alcohol initiation | Heavy alcohol consumption | Illicit drug use | |
|---|---|---|---|
| (n = 8037) | (n = 25360) | (n = 24771) | |
| Grade | |||
| 7 | 8037 (100) | 8125 (32.0) | 7786 (31.4) |
| 9 | — | 9346 (36.9) | 9164 (37.0) |
| 11 | — | 7889 (31.1) | 7821 (31.6) |
| Gender | |||
| Male | 3994 (49.7) | 12698 (50.1) | 12353 (49.9) |
| Female | 3999 (49.8) | 12523 (49.4) | 12283 (49.6) |
| Missing | 44 (0.5) | 139 (0.5) | 135 (0.5) |
| Ethnicity | |||
| White | 6689 (83.2) | 21324 (84.1) | 20892 (84.3) |
| African‐Caribbean | 164 (2.0) | 454 (1.8) | 434 (1.8) |
| Indian | 442 (5.5) | 1493 (5.9) | 1441 (5.8) |
| Pakistani | 237 (2.9) | 756 (3.0) | 717 (2.9) |
| Bangladeshi | 49 (0.6) | 144 (0.6) | 133 (0.5) |
| Chinese | 22 (0.3) | 81 (0.3) | 82 (0.3) |
| Mixed | 232 (2.9) | 632 (2.5) | 616 (2.5) |
| Other | 110 (1.4) | 279 (1.1) | 270 (1.1) |
| Housing tenure | |||
| Owned | 5174 (64.4) | 18189 (71.7) | 17871 (72.1) |
| Rented | 1600 (19.9) | 4903 (19.3) | 4743 (19.1) |
| Other | 85 (1.1) | 238 (0.9) | 234 (0.9) |
| Does not know | 1107 (13.8) | 1856 (7.3) | 1759 (7.1) |
| Missing | 71 (0.3) | 174 (0.7) | 164 (0.7) |
| Free school meal | |||
| Yes | 1443 (18.0) | 3849 (15.2) | 3661 (14.8) |
| No | 6405 (79.7) | 21031 (82.9) | 20645 (83.3) |
| Does not know | 133 (1.7) | 340 (1.3) | 328 (1.3) |
| Missing | 56 (0.7) | 140 (0.6) | 137 (0.6) |
| Townsend score | |||
| Most deprived | 1122 (14.0) | 4140 (16.3%) | 4099 (16.5%) |
| Fairly deprived | 1329 (16.5) | 4289 (16.9) | 4240 (17.1) |
| Middle | 1294 (16.1) | 4371 (17.2) | 4311 (17.4) |
| Fairly affluent | 1340 (16.7) | 4359 (17.2) | 4260 (17.2) |
| Most affluent | 1526 (19.0) | 4489 (17.7) | 4310 (17.4) |
| Unknown | 380 (4.7) | 1221 (4.8) | 1183 (4.8) |
| Missing | 1046 (13.0) | 2491 (9.8) | 2368 (9.6) |
| Drinking with parents | |||
| Never | 3220 (40.1) | 7332 (28.9) | — |
| Sometimes | 3596 (44.7) | 13352 (52.6) | — |
| Often | 504 (6.3) | 2600 (10.3) | — |
| Missing | 717 (8.9) | 2076 (8.2) | — |
–, not applicable. Values are n (%).