. 2021 Jan 12;11:613244. doi: 10.3389/fpsyg.2020.613244

TABLE 4.

Influence of various demographics, including in relation to pornography use, and the modified Compulsive Internet Use Scale (mCIUS) variables on depression, anxiety and stress scores, measured using the DASS-21.

Variable		Depression			Anxiety			Stress
		β	P	Backward step of elimination	β	p	Backward step of elimination	β	P	Backward step of elimination
Age		−0.510	0.021	Not eliminated	–0.355	0.071	16	–0.033	0.895	2
Sex		−4.795	<0.001	Not eliminated	−3.755	<0.001	Not eliminated	−4.963	<0.001	Not eliminated
Semesters		–0.294	0.443	6	–0.087	0.801	3	–0.070	0.838	4
Shareroom		–1.312	0.243	9	0.761	0.449	8	–0.199	0.841	3
Lastviewed		1.802	<0.001	Not eliminated	0.535	0.125	15	1.267	<0.001	Not eliminated
Frequent		–0.382	0.382	7	–0.222	0.574	6	–0.465	0.254	10
Timeday		–0.832	0.346	8	–0.251	0.753	4	–0.739	0.353	12
AgeFirstExp		–1.082	0.101	16	−1.980	<0.001	Not eliminated	−1.377	0.026	Not eliminated
Preoccupation	TimeOthers	0.291	0.677	3	–0.127	0.840	2	0.498	0.441	9
	ShortSleep	0.674	0.181	12	1.249	0.002	Not eliminated	0.588	0.242	11
	ThinkSites	0.379	0.555	5	0.462	0.409	9	0.906	0.114	13
	LookFwd	–0.806	0.101	15	–0.409	0.392	12	–0.580	0.242	14
	RushWork	–0.056	0.940	1	–0.109	0.869	1	0.289	0.669	7
	NglctOb	1.240	0.009	Not eliminated	0.327	0.523	7	1.120	0.016	Not eliminated
	Restless	0.580	0.264	11	1.020	0.013	Not eliminated	1.559	<0.001	Not eliminated
Dependence	DiffStop	–0.149	0.786	2	−0.981	0.017	Not eliminated	–0.773	0.084	15
	AccessStop	–0.639	0.250	10	0.395	0.463	11	–0.382	0.492	8
	SpendLess	–0.661	0.106	14	–0.423	0.249	14	–0.133	0.746	5
	Unsuccess	0.315	0.572	4	–0.433	0.387	10	–0.053	0.921	1
Emotional coping	FeelDown	1.136	0.142	13	0.522	0.224	13	0.663	0.118	16
	EscpSor	1.747	<0.001	Not eliminated	0.215	0.745	5	0.292	0.672	6
R² for model		0.163			0.109			0.149

Effect sizes (β values) were obtained through backward stepwise regression analyses, as detailed in section “Materials and Methods.” Table shows the β value of each variable at the step in which it was eliminated from the model and the overall R² for each model.