. Author manuscript; available in PMC: 2018 Apr 9.

Published in final edited form as: Int J Obes (Lond). 2017 Feb 27;41(6):964–970. doi: 10.1038/ijo.2017.53

Table 3.

Quantile regression and mean regression Model 3 results for 5^th, 15^th, 50^th, 85^th and 95^th percentiles

Variable	Units	5^th		15^th		50^th		85^th		95^th		Mean Regression

		Coefficient	SE	Coefficient	SE	Coefficient	SE	Coefficient	SE	Coefficient	SE	Coefficient	SE
Boys
Intercept	(none)	−0.01	3.51	−0.004	3.51	−0.004	3.51	−0.006	3.51	−0.003	3.51	−0.004	3.49
Year	Years	0.24	0.23	0.25	0.23	0.25	0.23	0.25	0.23	0.30	0.23	0.26	0.21
Age	Year	−0.02	0.21	−0.01	0.21	−0.01	0.21	−0.02	0.21	−0.01	0.21	−0.01	0.15
Age*Age	Year²	0.01	0.005	0.01	0.01	0.01	0.01	0.01	0.006	0.01	0.006	0.01	0.006
Energy intake	100 kcal/day	0.02^*	0.01	0.02^*	0.01	0.02^*	0.01	0.02^*	0.01	0.03^*	0.01	0.02^***	0.01
Physical activity	Mets/d	−0.02	0.05	−0.03	0.05	−0.03	0.05	−0.03	0.05	−0.03	0.05	−0.03	0.05
Sedentary	Hrs/d	0.11	0.06	0.12	0.07	0.12	0.07	0.13	0.07	0.12	0.07	0.12	0.07
Father BMI	Kg/m²	0.18^***	0.02	0.19^***	0.02	0.21^***	0.02	0.26^***	0.02	0.27^***	0.02	0.22^***	0.02
Mother BMI	Kg/m²	0.14^***	0.02	0.15^***	0.02	0.17^***	0.02	0.19^***	0.02	0.21^***	0.02	0.17^***	0.02
Father education	Years	0.03	0.02	0.03	0.02	0.03	0.02	0.04^*	0.02	0.04	0.02	0.03	0.02
Mother education	Years	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.02	0.02	0.02	0.02	0.02
HH per capital income	1000 Yuan/year	0.01	0.01	0.01	0.01	0.02^**	0.01	0.02^*	0.01	0.03^**	0.01	0.02^***	0.01
Urbanicity index	None	−0.002	0.004	0.001	0.003	0.004	0.003	0.01	0.004	0.01	0.01	0.004	0.003
Age in 2011	Years	0.24	0.23	0.25	0.21	0.25	0.21	0.22	0.23	0.23	0.21	0.24	0.21
Girls
Intercept	(none)	10.65^*	4.12	10.65^*	4.12	10.65^*	4.12	10.65^*	4.12	10.65^*	4.16	10.65^*	3.67
Year	Years	−0.26	0.24	−0.25	0.26	−0.25	0.24	−0.24	0.24	−0.22	0.25	−0.25	0.22
Age	Year	0.17	0.14	0.17	0.14	0.17	0.14	0.18	0.14	0.19	0.14	0.18	0.16
Age*Age	Year²	0.02^**	0.01	0.02^**	0.01	0.02^**	0.01	0.02^**	0.01	0.02^***	0.01	0.02^***	0.01
Energy intake	Kcal/day	0.007	0.008	0.01	0.01	0.02	0.01	0.03^*	0.01	0.03^*	0.01	0.02^*	0.01
Physical activity	Mets/d	−0.12^*	0.06	−0.12	0.06	−0.12^*	0.06	−0.12^*	0.06	−0.12^*	0.06	−0.13^*	0.06
Sedentary	Hrs/d	−0.003	0.06	−0.003	0.06	−0.002	0.06	<0.01	0.06	<0.01	0.06	<0.01	0.06
Menarche age	Dummy	1.12^***	0.16	1.12^***	0.16	1.12^***	0.16	1.13^***	0.17	1.13^***	0.16	1.13^***	0.15
Father BMI	Kg/m²	0.15^***	0.02	0.15^***	0.02	0.17^***	0.02	0.19^***	0.02	0.21^***	0.02	0.17^***	0.02
Mother BMI	Kg/m²	0.12^***	0.02	0.13^***	0.02	0.14^***	0.02	0.17^***	0.02	0.18^***	0.02	0.14^***	0.02
Father education	Years	<0.01	0.02	<0.01	0.02	0.01	0.02	0.01	0.02	0.01	0.02	0.01	0.02
Mother education	Years	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.02	0.03	0.02	0.02	0.02
HH per capital income	1000 Yuan/year	<0.01	0.008	<0.01	0.008	<0.01	0.008	0.01	0.01	0.01	0.01	0.01	0.01
Urbanicity index	None	−0.01^*	0.004	<0.01	0.003	<0.01	0.004	<0.01	0.004	0.01	0.01	<0.01	0.003
Age in 2011	Years	−0.27	0.24	−0.25	0.24	−0.26	0.24	−0.26	0.24	−0.26	0.24	−0.26	0.22

^***

P<0.001,

^**

P<0.01,

p<0.05