Table 4.

Parameter estimates for predictors of participants’ BMI.

Parameter	B	Std. Error	95% CI	Wald χ2	p	ES
Model 1
(Intercept)	18.133	0.327	[17.491, 18.775]	3066.725	<0.001	N/A
[School = public]	0.081	0.054	[−0.024, 0.187]	2.269	0.132	0.037
[School = private]	0a
[Gender = male]	0.492	0.056	[0.383, 0.601]	78.309	<0.001	0.226
[Gender = female]	0a
Age	0.083	0.018	[0.048, 0.119]	21.149	<0.001	0.029
SB score	0.352	0.031	[0.291, 0.412]	131.521	<0.001	0.070
PA level	−0.626	0.038	[−0.700, −0.552]	275.347	<0.001	−0.104
[PA]3	−0.014	0.0067	[−0.027, −001]	4.750	0.029	−0.04
(Scale)	1.769b	0.047	[1.679, 1.864]
Model 2
(Intercept)	19.883	0.339	[19.219, 20.547]	3445.922	<0.001	N/A
[School = public]	0.074	0.054	[−0.032, 0.180]	1.891	0.169	0.034
[School = private]	0a
[Gender = male]	0.553	0.064	[0.428, 0.678]	75.603	<0.001	0.254
[Gender = female]	0a
Age	0.079	0.020	[0.041, 0.118]	16.621	<0.001	0.027
PA level	−0.633	0.038	[−0.708, −0.558]	274.164	<0.001	−0.106
[PA]3	−0.016	0.0067	[−0.029, −003]	5.781	0.016	−0.045
Type of SB score
[Watching TV = Not at all]	−0.385	0.140	[−0.659, −0.110]	7.558	0.006	−0.177
[Watching TV = <30 min/day]	−0.462	0.104	[−0.666, −0.258]	19.729	<0.001	−0.213
[Watching TV = 30 min–1 h/day]	−0.448	0.088	[−0.620, −0.275]	25.874	<0.001	−0.206
[Watching TV = 1–2 h/day]	−0.219	0.079	[−0.373, −0.065]	7.773	0.005	−0.101
[Watching TV = 2–4 h/day]	−0.175	0.088	[−0.348, −0.002]	3.925	0.048	−0.081
[Watching TV = >4 h/day]	0a
[Laptop use = Not at all]	−0.541	0.112	[−0.760, −0.323]	23.555	<0.001	−0.249
[Laptop use = <30 min/day]	−0.233	0.089	[−0.407, −0.058]	6.842	0.009	−0.107
[Laptop use = 30 min–1 h/day]	−0.127	0.089	[−0.302, 0.049]	2.005	0.157	−0.058
[Laptop use = 1–2 h/day]	−0.091	0.087	[−0.262, 0.079]	1.103	0.294	−0.042
[Laptop use = 2–4 h/day]	−0.045	0.096	[−0.234, 0.143]	0.222	0.637	−0.021
[Laptop use = >4 h/day]	0a
[Video games = Not at all]	−0.270	0.110	[−0.486, −0.054]	6.003	0.014	−0.124
[Video games = <30 min/day]	−0.258	0.103	[−0.460, −0.056]	6.287	0.012	−0.119
[Video games = 30 min–1 h/day]	−0.392	0.103	[−0.594, −0.190]	14.422	<0.001	−0.180
[Video games = 1–2 h/day]	−0.251	0.099	[−0.445, −0.056]	6.390	0.011	−0.115
[Video games = 2–4 h/day]	−0.013	0.105	[−0.220, 0.193]	0.016	0.898	−0.006
[Video games = >4 h/day]	0a
[Smartphone use = Not at all]	−0.338	0.173	[−0.676, 0.001]	3.825	0.050	−0.155
[Smartphone use = <30 min/day]	−0.358	0.095	[−0.544, −0.173]	14.303	<0.001	−0.165
[Smartphone use = 30 min–1 h/day]	−0.205	0.083	[−0.367, −0.043]	6.162	0.013	−0.094
[Smartphone use = 1–2 h/day]	−0.207	0.072	[−0.348, −0.066]	8.330	0.004	−0.095
[Smartphone use = 2–4 h/day]	0.069	0.078	[−0.084, 0.222]	0.790	0.374	0.032
[Smartphone use = >4 h/day]	0a
(Scale)	1.746b	0.047	[1.657, 1.840]

CI, confidence interval; ES, effect size; PA, physical activity; SB, sedentary behavior.

^aSet to zero because this parameter is redundant.

^bMaximum likelihood estimate.