Relationship between 24-h activity behavior and body fat percentage in preschool children: based on compositional data and isotemporal substitution analysis

Table 5 Liner regression analysis with compositional data for zBFP of the time spent in physical activity, sedentary behavior and sleep

Category	Model	β	P	SE	Model P-value	Model R²
Overall	ilr₁-MVPA/(SPSBLPA)	-0.114	< 0.05^*	0.049	< 0.01^**	0.228
	ilr₁-LPA/(MVPASPSB)	-0.382	< 0.01^**	0.087
	ilr₁-SB/(LPAMVPASP)	0.681	< 0.01^**	0.083
	ilr₁-SP/(SBMVPALPA)	0.158	0.123	0.101
Non-overweight/Non-obese	ilr1-MVPA/(SPSBLPA)	-0.064	0.173	0.047	< 0.01^**	0.271
	ilr1-LPA/(MVPASPSB)	-0.177	< 0.05^*	0.084
	ilr1-SB/(LPAMVPASP)	0.322	< 0.01^**	0.079
	ilr1-SP/(SBMVPALPA)	0.082	0.378	0.093
Overweight	ilr1-MVPA/(SPSBLPA)	-0.239	< 0.01*	0.071	< 0.01^**	0.443
	ilr1-LPA/(MVPASPSB)	-0.181	0.208	0.142
	ilr1-SB/(LPAMVPASP)	0.612	< 0.01^*	0.149
	ilr1-SP/(SBMVPALPA)	0.446	< 0.05^*	0.191
Obese	ilr1-MVPA/(SPSBLPA)	-0.061	0.611	0.120	< 0.01^**	0.519
	ilr1-LPA/(MVPASPSB)	-0.768	< 0.01^**	0.185
	ilr1-SB/(LPAMVPASP)	1.194	< 0.01^**	0.170
	ilr1-SP/(SBMVPALPA)	0.408	0.100	0.244
Boys	ilr1-MVPA/(SPSBLPA)	-0.155	< 0.05^*	0.077	< 0.01^**	0.143
	ilr1-LPA/(MVPASPSB)	-0.394	< 0.01^**	0.136
	ilr1-SB/(LPAMVPASP)	0.734	< 0.01^**	0.122
	ilr1-SP/(SBMVPALPA)	0.238	0.135	0.159
Girls	ilr1-MVPA/(SPSBLPA)	-0.057	0.33	0.059	< 0.01^**	0.161
	ilr1-LPA/(MVPASPSB)	-0.398	< 0.01^**	0.109
	ilr1-SB/(LPAMVPASP)	0.636	< 0.01^**	0.109
	ilr1-SP/(SBMVPALPA)	0.080	0.653	0.122

The β value refers to the strength of the association between the change in a given behavior relative to other behaviors and zBFP. For example, ilr1-MVPA/(SP*SB*LPA) refers to the strength of the association between zBFP and the time spent in moderate-to-vigorous physical activity (MVPA) as the first coordinate, relative to the time spent in sleep (SP), sedentary behavior (SB), and light physical activity (LPA). SE refers to the standard deviation. All models have been adjusted for factors such as toddler gender, age, and urban or rural areas

ISSN: 1471-2458