The unadjusted values for anthropometry, physical activity, fitness and dietary intake, classified by gender, primary school grade and age, and expressed as medians and percentiles.

PA Index is the physical activity index, approximately the square root of average steps per day. BMI is the body mass index. CRF is cardiorespiratory fitness as determined by number of stages reached in the multistage run. %BF is the DXA measured percent body fat. Tanner stage is the self-assessment of pubertal development.