Table 3.

Factors associated with Factor 1, Factor 2, and Internet addiction test score and Internet addiction.

Factors	Factor 1 lack of control/time management		Factor 2 craving/Social Problem		Internet addiction test score		Internet addiction
	Coef.	95%CI	Coef.	95%CI	Coef.	95%CI	OR	95%CI
Age			0.15	− 0.05; 0.35			1.13⁎	0.99; 1.29
Gender (male vs female)	0.63	− 0.14; 1.41			1.06	− 0.26; 2.39	1.47⁎	0.95; 2.28
Living location (vs homestay)
Living with relatives	− 1.12⁎	− 2.41; 0.18			− 1.66	− 3.86; 0.54
Education (vs ≤ high school)
College, vocational training	− 2.09⁎⁎⁎	− 3.37; − 0.80	− 1.23⁎⁎	− 2.38; − 0.08	− 3.37⁎⁎⁎	− 5.56; − 1.19	0.22⁎⁎⁎	0.08; 0.65
Pain/discomfort (yes vs no)			0.58⁎	− 0.11; 1.28			1.38	0.89; 2.16
Having problem in self-care (yes vs no)			2.00⁎⁎⁎	0.76; 3.24	2.00	− 0.69; 4.70	1.88⁎	0.94; 3.76
EQ5D index	− 2.65⁎⁎	− 5.01; − 0.28			− 4.30⁎	− 8.94; 0.35
Perceived stress score	0.58⁎⁎⁎	0.40; 0.76	0.32⁎⁎⁎	0.16; 0.49	0.89⁎⁎⁎	0.58; 1.19	1.20⁎⁎⁎	1.08; 1.33

^⁎p < 0.1.

^⁎⁎p < 0.05.

^⁎⁎⁎p < 0.01.