Social inequalities in traditional and emerging screen devices among Portuguese children: a cross-sectional study

Rodrigues, Daniela; Gama, Augusta; Machado-Rodrigues, Aristides M.; Nogueira, Helena; Silva, Maria-Raquel G.; Rosado-Marques, Vítor; Padez, Cristina

doi:10.1186/s12889-020-09026-4

BMC Public Health

Table 2 Linear regression models predicting screen time according to socioeconomic position, children aged 3–5 years

From: Social inequalities in traditional and emerging screen devices among Portuguese children: a cross-sectional study

	Model 1			Model 2			Model 3
	B	95% CI	R²	B	95% CI	R²	B	95% CI	R²
Television time (mean/day)
Weekdays	−5.31**	−8.31; − 2.31	0.006	− 5.31**	− 8.21; − 2.31	0.007	1.40	− 2.74; 5.55	0.019
Weekend	−13.27***	−17.37; − 9.24	0.021	− 13.30***	− 17.37; − 9.24	0.028	− 3.21	−8.80; 2.38	0.042
Computer time (mean/day)
Weekdays	−2.50***	−3.76; − 1.24	0.008	− 2.49***	−3.74; − 1.24	0.021	− 0.56	− 2.30; 1.18	0.025
Weekend	−5.80***	−7.86; − 3.74	0.017	− 5.78***	− 7.82; − 3.74	0.040	−1.77	− 4.59; 1.06	0.048
Electronic Games time (mean/day)
Weekdays	− 2.02***	− 3.00; −1.03	0.009	− 2.02***	− 2.99; − 1.05	0.037	− 0.71	− 2.06; 0.63	0.041
Weekend	−4.13***	−6.00; − 2.26	0.010	−4.10***	− 5.92; − 2.28	0.061	−1.90	− 4.41; 0.62	0.065
Smartphone time (mean/day)
Weekdays	−2.69***	−4.15; −1.23	0.007	− 2.69***	− 4.16; − 1.23	0.006	−0.78	− 2.80; 1.25	0.014
Weekend	−4.15***	−6.30; − 2.01	0.008	−4.16***	−6.31; − 2.01	0.008	− 0.78	− 3.75; 2.18	0.020
Tablet time (mean/day)
Weekdays	−1.86*	− 3.53; −0.19	0.002	− 1.86*	−3.53; − 0.20	0.003	− 1.99	−4.30; 0.32	0.002
Weekend	−3.07*	−5.70; − 0.43	0.002	− 3.11*	− 5.73; − 0.49	0.011	−1.97	− 5.60; 1.66	0.013
Total screen weekdays (mean/day)
	−11.51***	−16.80; − 6.22	0.010	− 11.46***	−16.74; − 6.17	0.012	−4.26	− 11.51; 3.00	0.020
Total screen weekend (mean/day)
	−24.66***	− 32.30; −17.01	0.023	− 24.55***	− 32.16; − 16.93	0.030	−12.71*	− 23.10; − 2.31	0.043
Total screen 7 days (mean/day)
	−19.60***	−26.03; − 13.17	0.021	− 19.50***	− 25.91; − 13.09	0.027	−9.59**	−18.33; − 0.85	0.041

Legend. B: Unstandardized beta coefficient; 95% CI: 95% confidence interval; R²: adjusted R-square; socioeconomic position calculated by father education; Model 1: crude, Model 2: adjusted for children’s gender, Model 3: like model 2 plus mother education, parental occupation and urbanization; *p < 0.05, **p < 0.01, ***p < 0.001

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ISSN: 1471-2458

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