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Table 4 Effect of the physical activity on BMD at follow up

From: The intensity of physical activity influences bone mineral accrual in childhood: the childhood health, activity and motor performance school (the CHAMPS) study, Denmark

Variable Coefficient estimate Standard error P- value
BMD baseline 0.966 0.02 <0.001
θ mh = log π mh π l 0.009 0.001 <0.001
Height follow up 0.001 0.0002 <0.001
Log(weight follow up) 0.039 0.008 <0.001
Gender 0.017 0.005 0.001
Puberty follow up 0.016 0.002 <0.001
Gender # puberty1 −0.014 0.003 <0.001
Intercept −0.150 0.018 <0.001
  1. Note: π mh l represents the percentage of the total time spent in, moderate-high and low intensity activity respectively. #: Interaction. The girls were chosen as the reference level for gender.