. 2023 Jul 27;14:1211889. doi: 10.3389/fpsyt.2023.1211889

Table 2.

Hierarchical logistic regression analysis.

Independent variables		Model 1			Model 2			Model 3			Model 4
Independent variables		B	Wald	OR	B	Wald	OR	B	Wald	OR	B	Wald	OR
Demographic characteristics	Sex	−0.193	0.289	0.824	−0.196	0.266	0.822	−0.652	2.597	0.521	−0.681	2.319	0.506
	Age	0.376	0.857	1.457	0.620	2.038	1.859	0.655	2.069	1.926	0.665	1.965	1.944
	Education	−0.316	0.603	0.729	−0.568	1.716	0.567	−0.662	2.117	0.516	−0.654	1.901	0.520
	Smoking	−0.254	0.141	0.775	−0.524	0.469	0.592	−0.675	0.680	0.509	−0.538	0.379	0.584
	alcohol	−0.418	2.003	0.658	−0.371	1.344	0.690	−0.257	0.599	0.774	−0.274	0.609	0.760
Game play pattern	Game genre				0.143	1.718	1.153	0.114	1.015	1.121	0.136	1.329	1.145
	Weekday				0.165	9.327	1.179**	0.142	6.389	1.153*	0.100	2.658	1.106
	Weekend				0.175	9.388	1.239**	0.139	5.103	1.125*	0.138	1.401	1.148
Psychological status	BDI-II							0.007	0.572	1.007	0.002	0.018	1.002
	BAI							−0.009	0.322	0.991	0.003	0.021	1.003
	KARS							0.047	10.389	1.049**	0.049	9.805	1.050**
	BISBAS							0.054	15.751	1.055	0.001	0.004	1.001
	K-WAIS							−0.002	0.106	0.998	0.002	0.077	1.002
Parenting style	Affective										−0.217	26.578	0.717**
	Rejecting										0.020	1.375	1.021
	Autonomous										−0.119	25.357	0.888**
	Controlling										0.024	0.906	1.024

Indices	Model 0	Model 1	Model 2	Model 3	Model 4
−2LL	692.345	639.328	575.267	533.313	495.285
Nag R²	N/A	0.011	0.181	0.280	0.363
Step χ²/p	N/A	3.728/0.589	64.1/<0.01	41.9/<0.01	38.0/<0.01
Model χ²/p	N/A	3.728/0.589	67.8/<0.01	109.7/<0.01	147.8/<0.01
Class Accur	54.8	56.7	65.7	70.2	72.8

−2LL, −2 log likelihood; Nag R², Nagelkerke’s R²; Class Accur, classification accuracy; Dependent variable, internet gaming disorder; Model 1, demographic factors; Model 2, Model 1 + game play pattern; Model 3, Model 2 + Psychological status; Model 4, Model 3 + parenting style; K-ARS, Korean version of Dupaul’s ADHD rating scale; BIS/BAS, behavioral inhibitory system/behavioral activation system; K-WAIS-IV, Korean-Wechsler adult intelligence scale-IV; YIAS, young internet addiction scale; BDI-II, Beck depression inventory II; BAI, Beck anxiety inventory. *p < 0.05 and **p < 0.01.