Table 1 Characteristics of children
| Â | School A | School B | Both |
|---|---|---|---|
| Â | N = 48 | N = 112 | N = 160 |
Child | |||
Age y (mean, SD) | 11.2, 2.0 | 8.2, 1.5 | 9.0, 2.1 |
Male (%, n) | 47.9%, 23 | 48.2%, 54 | 48.1%, 77 |
Ethnicity | |||
White (%, n) | 73.0%, 33 | 77.5%, 79 | 76.2%, 112 |
Black (%, n) | 8.9%, 4 | 1.0%, 1 | 3.4%, 5 |
Chinese (%, n) | 0.0, 0 | 13.7%, 14 | 9.5%, 14 |
South Asian (%, n) | 2.2%, 1 | 3.9%, 4 | 3.4%, 5 |
Other Asian (%, n) | 6.7%, 3 | 2.0%, 2 | 3.4%, 5 |
Other (%, n) | 8.9%, 4 | 2%, 2 | 4%, 6 |
Grade | |||
Grade 1 (%, n) | 2.1%, 1 | 24.7%, 22 | 16.8%, 23 |
Grade 2 (%, n) | 6.3%, 3 | 21.4%, 19 | 16.1%, 22 |
Grade 3 (%, n) | 8.3%, 4 | 21.4%, 19 | 16.8%, 23 |
Grade 4 (%, n) | 2.1%, 1 | 22.5%, 20 | 15.3%, 21 |
Grade 5 (%, n) | 14.6%, 7 | 10.1%, 9 | 11.7%, 16 |
Grade 6 (%, n) | 12.5%, 6 | 0.0, 0.0 | 4.4%, 6 |
Grade 7 (%, n) | 29.2%, 14 | 0.0, 0.0 | 10.2%, 14 |
Grade 8 (%, n) | 25%, 12 | 0.0, 0.0 | 8.8%, 12 |
BMI z-scores (mean, SD) | 0.65, 1.14 | 0.81, 0.71 | 0.75, 0.88 |