Table 4.

Correlation between Withdrawal-Related Symptoms (WRS), gaming urge, heart rate, and severity of internet gaming disorder (IGD) among individuals with IGD

Variables
IGD group	WRSa	Gaming cravingb	HR	Severity of IGD
Affective symptomsa		0.21	0.04	0.26*
Anhedoniaa		0.18	−0.02	0.36**
Gaming urgea		0.44***	0.08	0.41***
Gaming cravingb	0.27*
HR	0.032	−0.054
Severity of IGDc	0.35**	0.39**	−0.087

^a Total and subscale scores for Affective and Behavior Withdrawal Symptoms of Gaming Disorder Questionnaire.

^b Questionnaire on Gaming Urge-Brief Version.

^c Chen Internet Addiction Scale-Gaming Version.

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