Table 3.

Factors associated with problematic internet use risk (n = 1572).

Variables	n1	n2	Univarite analysis			Multivariable analysis
			OR	95% CI	p	OR	95% CI	p
Age (year)						–
13–14	699	41	1
15–16	789	43	0.92	0.59–1.14	0.743
Gender
Female	965	39	1			1
Male	523	45	2.12	1.36–3.31	0.001	1.88	1.19–2.96	0.007
Class						–
9th grade	781	47	1.15	0.73–1.79	0.536
10th grade	707	37	1
Father's education level						–
Primary/secondary school	474	21	1
High school	602	41	1.53	0.89–2.63	0.118
Baccalaureate and over	412	22	1.20	0.65–2.22	0.550
Mother's education level
Primary/secondary school	655	27	1			1
High school	563	33	1.42	0.84–2.39	0.185	1.35	0.78–2.31	0.273
Baccalaureate and over	270	24	2.15	1.22–3.80	0.008	2.40	1.32–4.36	0.004
Father's working status						–
Working	1329	74	0.88	0.44–1.74	0.726
Not working	159	10	1
Mother's working status						–
Working	430	30	1.36	0.86–2.16	0.183
Not working	1058	54	1
Family income
Expense > income	272	28	2.34	1.08–5.07	0.031	3.41	1.53–7.64	0.003
Expense is equal to income	1011	47	1.05	0.51–2.19	0.878	1.20	0.58–2.52	0.626
Expense < income	205	9	1			1
Having chronic illness
Yes	118	14	2.32	1.26–4.24	0.006	2.12	1.13–3.94	0.018
No	1370	70	1			1
Duration of internet use
1–2 years	471	17	1			1
3–4 years	537	31	1.59	0.87–2.92	0.128	1.55	0.82–2.88	0.173
5 years and over	480	36	2.07	1.15–3.75	0.015	2.04	1.09–3.81	0.025
Daily internet use time
Less than 2 h	108	4	1			-
3 h and more	1380	80	1.57	0.58–4.35	0.391

OR = Odds Ratio, CI = Confidence Interval.

n₁: No problematic internet use risk.

n₂: Problematic internet use risk.