Table 1.
Demographic characteristics of the study sample: primary-school children aged 4–11 years from fifteen schools, West Midlands, UK
| Group | n | Boys (n) | Girls (n) | IMD | Rank (%) | FSM (%) | Ethnic minorities (%) |
|---|---|---|---|---|---|---|---|
| Intervention | |||||||
| 1 | 125 | 64 | 61 | 1768 | 5·44* | 40·7 | 22 |
| 2 | 61 | 34 | 27 | 1217 | 3·75* | 39·0 | 27 |
| 3 | 149 | 82 | 67 | 7242 | 22·30 | 13·2 | 10 |
| 4 | 167 | 98 | 69 | 3639 | 11·20 | 30·5 | 82 |
| 5 | 49 | 34 | 15 | 1768 | 5·44* | 57·9 | 14 |
| 6 | 296 | 148 | 148 | 2822 | 8·69* | 25·9 | 18 |
| 7 | 265 | 162 | 103 | 20 609 | 63·45 | 7·8 | 74 |
| 8 | 209 | 88 | 121 | 20 609 | 63·45 | 8·7 | 71 |
| Control | |||||||
| 9 | 125 | 57 | 68 | 2528 | 7·78* | 36·6 | 25 |
| 10 | 188 | 94 | 94 | 3432 | 10·57 | 28·0 | 15 |
| 11 | 104 | 48 | 56 | 8199 | 25·24 | 35·8 | 10 |
| 12 | 284 | 158 | 126 | 26 581 | 81·83 | 2·8 | 10 |
| 13 | 222 | 128 | 94 | 9748 | 30·01 | 35·5 | 80 |
| 14 | 135 | 67 | 68 | 6195 | 19·07 | 7·8 | 51 |
| 15 | 95 | 46 | 49 | 14 977 | 46·11 | 14·5 | 10 |
IMD, Index of Multiple Deprivation (1 = most deprived, 32 482 = least deprived); FSM, free school meals.
*Schools within 10 % of most deprived areas.