Table 2.

Correlations between GPIUS2 scores and other psychological variables in residents with MHP.

Variable	General Health Questionnaire-12		Patient Health Questionnaire-9		Rosenberg Self-Esteem Scale
	T1	T2	T1	T2	T1	T2
	ρ	ρ	ρ	ρ	ρ	ρ
	(p)	(p)	(p)	(p)	(p)	(p)
GPIUS2 total score at T1	0.081	0.287	0.077	0.207	−0.099	−0.184
	(0.636)	(0.089)	(0.651)	(0.224)	(0.564)	(0.281)
GPIUS2 Preference for online social interaction at T1	−0.054(0.754)	0.131(0.443)	0.063(0.714)	0.051(0.766)	−0.035(0.835)	−0.134(0.434)
GPIUS2 Mood regulation at T1	−0.043	0.205	0.303	0.379	0.087	0.079
	(0.802)	(0.230)	(0.072)	(0.022*)	(0.613)	(0.646)
GPIUS2 Deficient self-regulation at T1	0.123	0.235	−0.026	0.067	0.006	−0.023
	(0.472)	(0.166)	(0.878)	(0.697)	(0.968)	(0.893)
GPIUS2 Negative outcomes at T1	0.056	0.276	−0.242	−0.050	−0.132	−0.167
	(0.744)	(0.103)	(0.153)	(0.772)	(0.441)	(0.328)
GPIUS2 total score at T2	0.020	0.133	0.135	0.286	−0.140	−0.260
	(0.903)	(0.437)	(0.430)	(0.090)	(0.413)	(0.125)
GPIUS2 Preference for online social interaction at T2	0.146	0.301	0.382	0.428	−0.304	−0.447
	(0.395)	(0.074)	(0.021*)	(0.009**)	(0.071)	(0.006*)
GPIUS2 Mood regulation at T2	−0.125	0.042	0.299	0.371	0.058	0.037
	(0.464)	(0.804)	(0.075)	(0.025*)	(0.734)	(0.828)
GPIUS2 Deficient self-regulation at T2	0.082(0.632)	0.002(0.987)	0.139(0.415)	0.224(0.187)	−0.025(0.883)	−0.223(0.190)
GPIUS2 Negative outcomes at T2	0.207	0.188	0.072	0.131	−0.197	−0.357
	(0.225)	(0.269)	(0.674)	(0.444)	(0.248)	(0.032*)

MHP, mental health problems; GPIUS2, Generalized Problematic Internet Use Scale 2; T1, Time 1 (baseline); T2, Time 2 (3 months after baseline);

^*p < 0.05

^**p < 0.01.