. 2021 Nov 11;12:764054. doi: 10.3389/fpsyt.2021.764054

Table 9.

Associations between time spent using technological devices during weekends and academic performance and life satisfaction.

	Academic performance						Life satisfaction
	Unadjusted			Adjusted			Unadjusted			Adjusted
Variables	Beta	[95% CI]	P-value	Beta	[95% CI]	P-value	Beta	[95% CI]	P-value	Beta	[95% CI]	P-value
Time spent weekends
Television	−0.01	[−0.02 to 0.00]	0.190	N/A	N/A	N/A	−0.12	[−0.32 to 0.08]	0.238	N/A	N/A	N/A
Computer	−0.03	[−0.05 to −0.02]	0.000	0.00	[−0.02 to 0.02]	0.764	−0.30	[−0.58 to −0.03]	0.030	−0.16	[−0.47 to 0.16]	0.330
Cellphone	−0.05	[−0.06 to −0.04]	0.000	−0.03	[−0.05 to −0.02]	0.000	−0.24	[−0.41 to 0.74]	0.005	0.03	[−0.19 to 0.25]	0.771
Video game	−0.04	[−0.05 to −0.03]	0.000	−0.00	[−0.02 to 0.01]	0.747	0.01	[−0.15 to 0.17]	0.903	N/A	N/A	N/A
Risk experiences
Had received unwanted violent content	−0.15	[−0.21 to −0.08]	0.000	−0.03	[−0.11 to 0.04]	0.407	−2.76	[−3.74 to −1.78]	0.000	−1.43	[−2.6 to −0.25]	0.017
Had been hacked	−0.22	[−0.29 to −0.15]	0.000	−0.15	[−0.23 to −0.07]	0.000	−1.41	[−2.5 to −0.30]	0.013	0.39	[−0.85 to 1.63]	0.535
Had seen violent content on purpose	−0.17	[−0.22 to −0.11]	0.000	−0.07	[−0.13 to −0.01]	0.029	−1.86	[−2.67 to −1.04]	0.000	−0.38	[−1.38 to 0.63]	0.464
Had played with strangers	−0.11	[−0.15 to −0.06]	0.000	0.05	[0.00 to 0.11]	0.058	−0.80	[−1.47 to −0.13]	0.020	−0.59	[−1.41 to 0.24]	0.165
Video game dependence and
negative effects
Calm them down	0.01	[−0.05 to 0.07]	0.721	N/A	N/A	N/A	0.08	[−0.82 to 0.98]	0.863	N/A	N/A	N/A
Are an addiction	−0.03	[−0.08 to 0.03]	0.335	N/A	N/A	N/A	−0.90	[−1.69 to −0.12]	0.024	−0.50	[−1.32 to 0.31]	0.225
Make them violent	0.01	[−0.05 to 0.06]	0.764	N/A	N/A	N/A	−1.34	[−2.15 to −0.53]	0.001	−0.96	[−1.80 to −0.13]	0.023
Agree playing late affects their sleep	0.10	[0.04 to 0.16]	0.001	0.08	[0.02 to 0.13]	0.008	0.28	[−0.59 to 1.15]	0.531	N/A	N/A	N/A
Cyberbullying
Victim	−0.18	[−0.25 to −0.10]	0.000	−0.10	[−0.19 to −0.01]	0.024	−4.02	[−5.14 to −2.91]	0.000	−3.47	[−4.83 to −2.12]	0.000
Perpetrator	−0.23	[−0.34 to −0.12]	0.000	−0.10	[−0.21 to 0.02]	0.108	−1.83	[−3.5 to −0.16]	0.032	−0.62	[−2.44 to 1.21]	0.507
Bystander	−0.09	[−0.14 to −0.04]	0.000	−0.01	[−0.06 to 0.05]	0.849	−0.85	[−1.56 to −0.13]	0.020	0.01	[−0.84 to 0.86]	0.980
Sleep routine
Sleep deprivation	−0.21	[−0.27 to −0.14]	0.000	−0.09	[−0.17 to −0.02]	0.013	−2.16	[−3.14 to −1.17]	0.000	−0.94	[−2.06 to 0.18]	0.101

The number of observations for academic performance outcome is 1,566. The number of observations for life satisfaction outcome is 1,495. P-values ≤ 0.05 are in bold; N/A, Not applicable; CI, Confidence interval.