. 2021 Jul 19;8(3):e26003. doi: 10.2196/26003

Table 4.

Results of the multiple regression model, indicating the significant predictors.

Variables		Model 1 portal use (all participants)		Model 2 recommendation (portal users)		Model 3 likelihood of using (portal nonusers)
		Estimates	P value	Estimates	P value	Estimates	P value
Intercept		1.513	.004	0.685	.10	0.579	<.001
Age		–0.015	.08	N/A^a	N/A	–0.003	.10
Income (€^b; reference: 0-20,000)
	20,001-30,000	N/A	N/A	N/A	N/A	–0.00938	.88
	30,001-40,000	N/A	N/A	N/A	N/A	0.153	.01
	≥40,001	N/A	N/A	N/A	N/A	0.054	.51
Daily internet hours		N/A	N/A	0.093	.07	N/A	N/A
Hospital visit time (hours; reference: 0.5-1)
	<0.5	–0.725	.03	N/A	N/A	N/A	N/A
	1-2	–0.246	.35	N/A	N/A	N/A	N/A
	2-3	–0.548	.12	N/A	N/A	N/A	N/A
	>3	0.613	.37	N/A	N/A	N/A	N/A
Level of control (reference: totally)
	Moderately	0.629	.04	N/A	N/A	N/A	N/A
	Little bit	0.328	.36	N/A	N/A	N/A	N/A
	Not at all	0.823	.08	N/A	N/A	N/A	N/A
	I don’t know	–1.825	.11	N/A	N/A	N/A	N/A
Depression scale (reference: mild)
	None	–0.147	.58	N/A	N/A	N/A	N/A
	Moderate	0.259	.43	N/A	N/A	N/A	N/A
	Moderately severe	–0.321	.45	N/A	N/A	N/A	N/A
	Severe	–1.652	.03	N/A	N/A	N/A	N/A
Life satisfaction scale (reference: satisfied or more)
	Slightly satisfied	0.116	.69	N/A	N/A	N/A	N/A
	Neutral	–1.009	.05	N/A	N/A	N/A	N/A
	Slightly dissatisfied	–0.589	.08	N/A	N/A	N/A	N/A
	Dissatisfied or less	–0.844	.02	N/A	N/A	N/A	N/A
Portal use COVID-19 (reference: daily)
	Weekly or more	N/A	N/A	1.269	.11	N/A	N/A
	3-5 times	N/A	N/A	2.050	.06.	N/A	N/A
	1-2 times	N/A	N/A	0.124	.74	N/A	N/A
Waiting time (reference: less than 24 hours)
	1-2 days	N/A	N/A	–2.081	<.001	N/A	N/A
	>2 days	N/A	N/A	–1.784	<.001	N/A	N/A
	Never tried	N/A	N/A	–0.911	.16	N/A	N/A
	No possibility	N/A	N/A	–0.681	.35	N/A	N/A
Maximum acceptable waiting time (reference: <12 hours)
	12-24 hours	N/A	N/A	1.187	.006	0.212	<.001
	1-2 days	N/A	N/A	2.292	<.001	0.192	.006
	>2 days	N/A	N/A	1.502	.03	0.181	.05
Awareness (reference: yes)		N/A	N/A	N/A	N/A	0.259	<.001
Participants, n		461	N/A	307	N/A	154	N/A
Akaike information criterion		570.87	N/A	246.96	N/A	N/A	N/A
R²		N/A	N/A	N/A	N/A	0.3554	N/A
Adjusted R²		N/A	N/A	N/A	N/A	0.2904	N/A

^aN/A: not applicable.

^bA currency exchange rate of €1=US $1.18 is applicable.