TABLE 1

Characteristics of the Sample by School Grade/Level and Gender (n = 6917)

Elementary SchoolHigh School
Grade 2Grade 4Grade 6Grade 8 and 10
BoysGirlsBoysGirlsBoysGirlsBoysGirls
Participants, n61663269769964963116611332
Mean age in grade, y (SE)7.3 (0.04)7.3 (0.04)9.3 (0.03)9.2 (0.03)11.3 (0.04)11.2 (0.04)14.4 (0.04)14.3 (0.05)
Urban, %88.787.387.688.284.288.681.180.3
SES, %
 Low29.530.728.329.825.328.823.825.1
 Middle41.942.543.444.944.043.335.139.1
 High28.626.928.425.330.727.941.135.8
BMI category, %
 Overweight/obese21.522.625.929.129.824.024.219.7
Cultural background, %
 English-speaking84.979.583.781.082.683.886.787.9
Physical activity, %
 Meets recommendation52.341.754.542.160.555.967.958.5
 Adequate fitnessnn56.9a68.7a69.576.366.666.5
Low competency in FMS, %
 Low competency in all FMS (0/7)92.6n78.098.365.696.046.493.1
 Object-control skills (≤2/3 skills)53.892.035.078.826.063.114.458.3
 Locomotor skills (≤3/4 skills)89.888.379.174.269.462.950.749.5
  • n, not tested.

  • a Of those aged 10 and over in this grade.