Table 2 Descriptive personal and anthropometry data on the SPEEDY study sample (all numbers in cells are mean (standard deviation) unless stated otherwise)

N (%)

926 (44.9)

1138 (55.1)

2064

Age (years)

10.2 (0.3)

10.3 (0.3)

10.3 (0.3)

Ethnicity (% non-white)

3.8

3.8

3.8

SES – parental education (%)

- GCSE or lower

36.3

40.6

38.7

- up to A level

42.2

40.4

41.2

- higher education

21.4

18.9

20.0

Home location

- Urban (>10,000 inhabitants)

40.3

38.9

39.6

- Town and fringe

26.6

29.9

28.4

- Village

25.4

24.7

25.0

- Hamlet & isolated dwelling

7.7

6.5

7.0

Height (cm)

140.9 (6.5)

141.0 (6.8)

141.0 (6.7)

Weight (kg)

35.7 (7.7)

37.1 (8.8)*

36.5 (8.4)

Bodyfat%

27.2 (7.5)

33.2 (7.3)*

30.5 (7.9)

Waist circumference (cm)

63.6 (7.8)

63.6 (9.0)

63.6 (8.4)

BMI (kg/m2)

17.9 (2.9)

18.5 (3.4)*

18.2 (3.2)

Weight status (%)

- overweight

15.0

19.3*

17.4

- obese

4.1

6.6

5.5