Problem behaviours by non-mixed and mixed ethnicity at ages 3, 5, 7 and 11
| Age | White non-mixed | White mixed | Indian non-mixed | Indian mixed | Pakistani non-mixed | Pakistani mixed | Bangladeshi non-mixed | Bangladeshi mixed | Black Caribbean non-mixed | Black Caribbean mixed | Black African non-mixed | Black African mixed | Other non-mixed | Other mixed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 9.4 | 8.3 | 10.1 | 7.7 | 13.1 | 8.9 | 11.9 | 7.2 | 10.6 | 10.6 | 9.2 | 9.5 | 10.5 | 9.6 |
| 5 | 7.0 | 5.9 | 7.3 | 6.1 | 9.9 | 7.9 | 8.7 | 6.3 | 9.0 | 8.0 | 7.0 | 7.8 | 7.5 | 7.8 |
| 7 | 7.2 | 6.4 | 7.6 | 5.7 | 9.7 | 9.3 | 8.8 | 7.4 | 8.8 | 9.2 | 6.6 | 8.0 | 7.3 | 6.9 |
| 11 | 7.7 | 6.9 | 7.5 | 6.3 | 8.8 | 10.3 | 7.8 | 12.0 | 7.9 | 8.7 | 7.4 | 6.7 | 8.4 | 7.8 |
All means are adjusted for sample design. Sample at each sweep excludes twins and triplets. Only respondents who are biological, step, adopted or foster mothers are included. At ages 5, 7 and 11, children who had attention-deficit/hyperactivity disorder/Asperger’s or autism are excluded. The sample size at age 3 is 13 742; age 5 is 13 555; age 7 is 12 250; and age 11 is 11 996.