Table 1 Characteristics of participants
Number (%), mean ( standard deviation ), or Median, 25th centile-75th centile | |||
|---|---|---|---|
9-10 years (2007) | 10-11 years (2008) | 13-14 years (2011) | |
Sex (Female) | 156 (55.1%) | - | - |
Age | 10.3 (0.3) | 11.2 (0.3) | 14.3 (0.3) |
BMI | 17.3, 15.9 - 19.2 | - | 20.1, 18.3 - 22.9 |
Weight statusa | |||
Healthy weight | 229 (81.5%) | - | 228 (81.1%) |
Overweight | 44 (15.7%) | - | 41 (14.6%) |
Obese | 8 (2.9%) | - | 12 (4.3%) |
Age parent left full time educationb* | |||
<=16 years | 103 (37.5%) | - | - |
16-18 years | 107 (38.9%) | - | - |
>18 years | 65 (23.6%) | - | - |
Locationc | |||
Urban | 101 (36.2%) | - | - |
Town & Fringe | 74 (26.5%) | - | - |
Rural | 104 (37.2%) | - | - |
Average daily time spent… | |||
Sedentary | 471.5, 436 - 498.7 | 478.3, 449.5 - 508 | 513.8, 475.2 - 545 |
MVPA | 73, 58.5 - 90.8 | 69.6, 54 - 86.1 | 59.8, 47.3 - 76.6 |
Vigorous or very vigorous* | 24.2, 17 - 34.2 | 21.9, 15.2 - 30.4 | 16.7, 9.8 - 25.2 |
Registered time* | 727.1 (55.2) | 725.5 (52.2) | 715.1 (65.8) |
Average daily counts per minutes | 611.3, 505.2 - 753.2 | 571.4, 462.8 - 680 | 452.7, 364 - 564.1 |
Number of valid days | 6, 5 - 6 | 7, 6 - 7 | 6, 5 - 7 |