Characteristics of children in study
| No (%) recruited (n=1000) | No (%) completing project (n=455) | |
|---|---|---|
| Ethnic group | ||
| White European | 186 (19) | 50 (11) |
| Asian | 712 (71) | 357 (78) |
| African Caribbean | 76 (8) | 30 (7) |
| Other | 26 (3) | 18 (4) |
| Mother’s education | ||
| None or primary school only | 310 (31) | 160 (35) |
| Mother’s age (years) | ||
| < 20 | 280 (28) | 82 (18) |
| > 38 | 240 (24) | 26 (6) |
| Father’s occupation by social class | ||
| I and II | 100 (10) | 48 (11) |
| IV, V, or unclassified | 500 (50) | 276 (61) |
| Family size | ||
| Average No of children | 2.5 | 2.5 |
| More than 3 children | 220 (22) | 104 (23) |