Baseline characteristics of sample from 1999 Health Survey for England
| Characteristic | n (%) |
|---|---|
| Age group (y) | |
| 2–4 | 1253 (18.9) |
| 5–9 | 1901 (28.6) |
| 10–15 | 2103 (31.6) |
| 16–20 | 1391 (20.9) |
| Sex | |
| Male | 3358 (50.5) |
| Female | 3290 (49.5) |
| Social class | |
| I | 356 (5.4) |
| II | 1406 (21.2) |
| IIIn | 783 (11.8) |
| IIIm | 2008 (30.2) |
| IV | 1373 (20.7) |
| V | 214 (3.2) |
| Unemployed | 402 (6.1) |
| Other | 98 (1.5) |
| Ethnic group | |
| General population | 2061 (31.0) |
| Afro-Caribbean | 807 (12.1) |
| Indian | 668 (10.1) |
| Pakistani | 1060 (15.9) |
| Bangladeshi | 974 (14.7) |
| Chinese | 342 (5.1) |
| Irish | 736 (11.1) |