Table 4.

Results of bootstrapping: Standardized regression weights

Variable	Total effect
	1.	2.	3.	4.	5.
1. Problematic Internet use		0.40***	0.45***	0.44***	0.28***
2. Stress			0.59***	0.66***	0.36***
3. Anxiety	0.23***			0.17***	0.15*
4. Depression	0.30***	0.10***			0.27***
5. Poor sleep quality	0.21***	0.24***	0.05***
Indirect effect

*P<0.05; **P<0.01; ***P<0.001