Table 1

Characteristic of study participants

Mean (standard deviation)

All

Girls

Boys





Number of participants

1794

986

808

Age (years)

10.25 (0.30)

10.26 (0.30)

10.25 (0.31)

Fat Mass Index (Fat Mass(kg)/height(m)2) *

5.82 (2.60)

6.40 (2.65)

5.10 (2.36)

Days for which PA data recorded

3.53 (0.82)

3.55 (0.80)

3.51 (0.85)

Whole day (07:00- - 21:00)...

Minutes sedentary *

466.1 (63.5)

474.9 (61.7)

455.3 (64.0)

Minutes MVPA *

72.6 (29.3)

64.46 (25.1)

82.8 (30.9)

Counts per minute *

618.6 (244.5)

575.0 (235.3)

672.4 (245.0)

Lunchtime (12:00 - 14:00)...

Minutes sedentary *

71.6 (12.9)

74.8 (11.9)

67.6 (12.9)

Minutes MVPA *

14.7 (7.8)

12.1 (6.1)

17.8 (8.4)

Counts per minute *

712.8 (325.9)

619 (273.2)

828.3 (347.9)


* difference between girls and boys significant p < 0.05

Harrison et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8:47   doi:10.1186/1479-5868-8-47

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