Table 1.

Multi-variable linear regression models of students’ characteristics with internet addiction, social support, sleep quality, and depressive

Characteristics	Internet addiction		Social support		Sleep quality		Depression
	b	BCa 95% CI	b	BCa 95% CI	b	BCa 95% CI	b	BCa 95% CI
Age	-0.048	-0.458, 0.362	0.127	-0.104, 0.358	0.014	-0.097, 0.125	-0.085	-0.456, 0.287
Sex (ref: male)	-1.089*§	-2.019, -0.159	0.452	-0.073, 0.977	0.481‡§	0.229, 0.733	1.268†§	0.424, 2.112
Father’s education	-0.159	-0.651, 0.333	-0.097	-0.375, 0.180	0.012	-0.121, 0.146	0.040	-0.406, 0.487
Mother’s education	0.112	-0.397, 0.620	-0.265	-0.552, 0.022	-0.007	-0.145, 0.131	0.016	-0.445, 0.478
Father’s occupations	-0.060	-0.195, 0.074	-0.012	-0.088, 0.064	-0.016	-0.052, 0.021	-0.054	-0.176, 0.067
Mother’s occupations	-0.056	-0.190, 0.078	0.007	-0.069, 0.082	-0.014	-0.050, 0.022	0.009	-0.112, 0.131
The relationship between parents	-2.203‡§	-2.696, -1.711	1.766‡§	1.488, 2.043	-0.668‡§	-0.801, -0.535	-2.695‡§	-3.142, -2.249
Parents’ expectations of their children	-0.336	-0.927, 0.256	-0.880‡§	-1.214, -0.547	-0.137	-0.297, 0.024	0.359	-0.178, 0.896
Physical activity	-0.962†§	-1.378, -0.546	0.493‡§	0.259, 0.728	-0.195‡§	-0.308, -0.083	-0.748‡§	-1.125, -0.371

^*p<0.05;

^†p<0.01;

^‡p<0.001;

^§Statistically significant associations.

b, unstandardized coefficient; BCa, bias corrected and accelerated: 5,000 bootstrap samples; CI, confidence interval