Table 4.

Body fat mass prediction multivariable growth models.

	Boys (n=277)		Girls (n=277)
	b ± s.e.	P-value	b ± s.e.	P-value
Intercept	0.05 ± 0.26	0.85	0.16 ± 0.18	0.38
Age (years)	0.03 ± 0.02	0.08	0.02 ±0.01	<0.05
Peak height velocity age (at/post vs. pre)	−0.33 ± 0.03	<0.01	−0.03 ± 0.02	0.19
Height (cm)	0.02 ± 0.00	<0.01	0.02 ± 0.00	<0.01
Sedentary time (hrs/day)	−0.01 ± 0.01	0.21	−0.01 ± 0.01	0.24
Log MVPA time (min/day)	−0.10 ± 0.02	<0.01	−0.05 ± 0.01	<0.01

MVPA time, time spent in moderate- to vigorous-intensity physical activity; b, parameter estimate; s.e., standard error.

Sex-specific growth model: log body fat mass (kg) = age (years) + peak height velocity age (pre/post) + height (cm) + sedentary time (hrs/day) + log MVPA time (min/day). Growth effects within individuals were taken into account. Participants with measurement data from at least one examination were included in the analysis.