Table 4.

Comparison of the correlation/regression of BMI and affected factors between girls and boys

Variables	Unstandardized coefficients		Standardized coefficients		t		R		Sig.		Correlations
	B		Beta								Zero-order		Partial
	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls
Age	0.002	0.0001	0.031	0.0001	1.827	−0.021	0.036	0.005	0.068	0.983	0.036	0.005	0.030	0.0001
Family size	−0.016	−0.017	−0.025	−0.029	−1.405	−1.587	0.021	0.031	0.160	0.113	−0.022	−0.031	−0.023	−0.027
Number of children	0.011	0.024	0.006	0.014	0.338	0.784	0.009	0.007	0.736	0.433	−0.009	−0.007	0.006	0.014
Mother education	−0.002	0.009	−0.005	0.027	−0.246	1.208	0.008	0.015	0.806	0.227	0.011	0.035	−0.004	0.021
Father education	0.004	-0.003	0.009	−0.009	0.454	−0.432	0.018	0.005	0.650	0.666	0.016	0.018	0.008	−0.007
Breastfeeding Duration (month)	−0.002	−0.001	−0.037	−0.023	−2.204	−1.319	0.024	0.011	0.028	0.187	−0.024	−0.011	−0.036	−0.023
Watching TV (min)	0.0001	0.0001	0.0001	−0.003	0.0001	−0.186	0.014	0.005	1.000	0.852	0.014	0.005	0.000	−0.003
Playing computer games (min)	0.0001	0.0001	0.023	0.025	1.376	1.423	0.034	0.030	0.169	0.155	0.034	0.030	0.023	0.025
Playing outdoors (min)	0.0001	0.0001	0.023	0.017	1.339	0.979	0.025	0.018	0.181	0.328	0.025	0.018	0.022	0.017
Sleep time (hours)	−0.007	−0.018	−0.019	−0.056	−1.109	−3.182	0.022	0.054	0.268	0.001*	−0.022	−0.054	−0.018	−0.055
Birth weight (kg)	0.093	0.095	0.091	0.103	5.384	5.828	0.085	0.099	0.0001*	0.0001*	0.086	0.099	0.089	0.100
Number of main eating	0.002	0.013	0.002	0.013	0.122	0.742	0.004	0.007	0.903	0.458	−0.004	0.007	0.002	0.013
Number of snacks	0.020	0.005	0.035	0.011	2.096	0.608	0.039	0.016	0.036*	0.543	0.039	0.016	0.035	0.011
Food security	0.018	0.020	0.034	0.042	2.047	2.405	0.034	0.042	0.041*	0.016*	0.034	0.042	0.034	0.042

*Correlation analysis based on Pearson and Spearman Rho regarding quantitative or qualitative variables. R was calculated using multiple regression test.