Effects of physical activity on smartphone addiction in Chinese college students-chain mediation of self-control and stress perception

Table 4 Regression analysis of the multiple mediation model

Dependent variable	Independent variable	R	R²	F	β	t	P
smartphone addiction		0.304	0.092	11.190
	Age				0.018	0.400	0.690
	Gender				0.104	2.347	0.019
	An only child				0.006	0.130	0.897
	Domicile				−0.087	−2.000	0.046
	Physical activity				−0.264	−6.468	0.000
self-control		0.295	0.087	10.530
	Age				0.052	1.187	0.236
	Gender				−0.171	−3.866	0.000
	An only child				−0.000	−0.009	0.993
	domicile				0.099	2.270	0.024
	Physical activity				0.222	5.443	0.000
Stress perception		0.613	0.376	55.184
	Age				−0.032	−0.887	0.375
	Gender				−0.046	−1.238	0.216
	An only child				0.030	0.834	0.405
	domicile				−0.019	−0.533	0.594
	Physical activity				−0.112	−3.239	0.001
	self-control				−0.578	−16.389	0.000
smartphone addiction		0.628	0.394	51.007
	Age				0.052	1.461	0.145
	Gender				0.018	0.481	0.631
	An only child				−0.000	−0.008	0.994
	domicile				−0.029	−0.799	0.425
	Physical activity				−0.119	−3.448	0.000
	Self-control				−0.444	−10.455	0.000
	Stress perception				0.190	4.515	0.000

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