Table 2.

Uni- and multivariate logistic regression models for health-related outcomes in relation to Internet use

Dependent variable	Internet* use	OR	95%CI	p&	aOR	95%CI	p#
Smoking	1	0.99	0.67–1.44	0.94	0.69	0.35–1.36	0.284
	2	0.69	0.34–1.39	0.30	1.35	0.86–2.12	0.19
	3	1.33	0.81–2.16	0.26	1.03	0.7–1.52	0.883
Alcohol consumption	1	1.64	0.99–2.72	0.055	1.67	0.99–2.79	0.05
	2	1.68	1.12–2.51	0.012	1.65	1.09–2.50	0.019
	3	1.44	1.03–2.01	0.033	1.41	1.00–1.98	0.05
Physical activity	1	1.01	0.71–1.44	0.96	0.48	0.28–0.83	0.008
	2	0.52	0.30–0.90	0.020	0.99	0.64–1.57	0.992
	3	1.07	0.67–1.72	0.77	0.94	0.65–1.35	0.725
Consumption of fruit and vegetables	1	1.48	0.96–2.27	0.076	0.87	0.42–1.8	0.702
	2	1.34	0.64–2.82	0.44	0.85	0.47–1.51	0.568
	3	1.33	0.73–2.41	0.35	0.64	0.42–0.99	0.049
Self-assessment of health status	1	0.68	0.41–1.15	0.15	0.7	0.41–1.19	0.19
	2	0.59	0.40–0.89	0.012	0.58	0.38–0.88	0.010
	3	0.57	0.41–0.79	0.001	0.59	0.42–0.82	0.002
Health literacy	1	0.73	0.54–0.99	0.047	0.71	0.52–0.97	0.034
	2	0.59	0.34–1.02	0.057	0.62	0.35–1.07	0.087
	3	0.90	0.59–1.36	0.61	0.86	0.56–1.31	0.48
BMI	1	1.18	0.84–1.65	0.34	0.89	0.51–1.56	0.69
	2	1.07	0.61–1.88	0.82	0.69	0.45–1.05	0.079
	3	0.83	0.54–1.29	0.41	0.91	0.64–1.29	0.58
Chronic condition	1	0.30	0.16–0.48	< 0.001	0.27	0.16–0.47	< 0.001
	2	0.22	0.16–0.33	< 0.001	0.21	0.13–0.32	< 0.001
	3	0.21	0.15–0.30	< 0.001	0.2	0.14–0.29	< 0.001
Disability%	1	0.74	0.50–1.09	0.13	0.73	0.49–1.09	0.12
	2	0.37	0.24–0.57	< 0.001	0.35	0.22–0.54	< 0.001
Hospital admissions in preceding year	1	0.76	0.53–1.07	0.12	1.04	0.58–1.88	0.888
	2	0.78	0.43–1.43	0.43	0.6	0.35–1.02	0.057
	3	0.45	0.26–0.77	0.004	1.32	0.92–1.89	0.13
Visits to health care facility in preceding year	1	1.59	1.13–2.25	0.008	0.62	0.36–1.07	0.088
	2	0.92	0.53–1.60	0.78	0.76	0.48–1.19	0.22
	3	1.22	0.77–1.94	0.40	0.65	0.45–0.93	0.017

*Categories of Internet use: referential category of Internet use used in logistic regression modelling—“no use”, 1— “a few times a month or less often”, 2— “a few times a week”, 3— “everyday”; ^%–due to low frequencies of selected categories of Internet use, the categories were collapsed: 1—not more than a few times a week, 2—every day, referential category— “no use”, ^&p value for univariate logistic regression model; ^#p value for univariate logistic regression model; OR—odds ration; 95%CI—95% confidence interval; aOR—odds ration after adjusting for sociodemographic variables (age—as a continuous variable, gender, education level, place of residence, marital status, vocational status, net income per household member), BMI—body mass index