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

Table 5 Effect of the physical activity on BA at follow up

Variable	Coefficient estimate	Standard error	P - value
BA _baseline	0.62	0.49	<0.0001
$θ_{mh} = log (\frac{π_{mh}}{π_{l}})$	22.18	4.20	<0.001
Height _{follow up}	6.87	0.69	<0.001
Log(weight _{follow up})	285.20	18.12	<0.001
Puberty _{follow up}	24.47	2.32	<0.001
Gender	−26.33	5.52	<0.001
Intercept	−1405.85	86.01	<0.001

Note: π _mh ,π _lrepresents the percentage of the total time spent in, moderate-high and low intensity activity respectively. The girls were chosen as the reference level for gender.

ISSN: 1471-2431