Table 3.

Regression analysis of the relationships among variables（n = 1268）.

Regression Equation		Overall Fit Index			Significance of Regression coefficient
Outcome variable	Predictive variable	R2	F	P	B	t	P
MPAI	Constant	0.012	5.067	0.0017	47.773	12.360	<0.001
	LBE				−3.467	−3.842	0.001
	Age				0.046	0.244	0.808
	Grade				−0.193	−0.424	0.672
IAS	Constant	0.0095	4.034	<0.001	41.991	15.971	<0.001
	LBE				−1.556	−2.535	0.011
	Age				0.164	1.273	0.203
	Grade				0.480	1.552	0.121
MPAI	Constant	0.256	108.7	<0.001	17.085	4.645	<0.001
	IAS				0.731	20.362	<0.001
	LBE				−2.330	−2.967	0.003
	Age				−0.074	−0.448	0.654
	Grade				−0.543	−1.376	0.169

Abbreviations: IAS, interaction anxiousness scale; LBE, left-behind experience (Yes = 1; No = 2); MPAI, mobile phone addiction index.