Table 3.

Sociodemographic and clinical data of participants by group of electronic health (eHealth) user.

Sociodemographic and clinical data		Rare users (N=9541), n (%)	Normal users (N=3538), n (%)	Super users (N=921), n (%)	Chi-square (degrees of freedom); P value
Age groups (years)
	16-24	1645 (17.24)	932 ( 26.35)	200 (21.6)	209.1 (4); <.001
	25-54	6031 (63.21)	2169 (61.32)	508 (55.1)
	55-74	1861 (19.54)	436 (12.32)	214 (23.2)
Gender
	Male	4896 (51.31)	1859 (52.54)	456 (49.4)	3213 (2); .20
	Female	4645 (48.68)	1679 (47.45)	466 (50.6)
Educational level
	Primary or lower secondary education (international standard classification of education, ISCED 3 or 4)	1415 (14.83)	529 (14.83)	184 (19.9)	45.2 (2); <.001
	Upper secondary education (ISCED 3 or 4)	4306 (45.13)	1670 (47.18)	464 (50.3)
	Tertiary education (ISCED 5 or 6)	3819 (40.03)	1340 (37.86)	274 (29.8)
Occupation
	Employed or self-employed (including family workers)	5644 (59.16)	2091 (59.10)	454 (49.3)	131.2 (6); <.001
	Unemployed	892 (9.35)	315 (8.90)	128 (13.9)
	Student (not in the workforce)	1239 (12.98)	642 (18.14)	126 (13.7)
	Other not in the workforce (eg, retired or inactive)	1765 (18.50)	490 (13.84)	213 (23.7)
Type of locality
	Densely populated area (cities and large towns)	3660 (38.36)	1469 (41.52)	338 (36.7)	48.6 (2); <.001
	Intermediate area (towns)	3609 (37.82)	1423 (40.22)	375 (40.7)
	Thinly populated area (village and rural)	2272 (23.81)	646 (18.25)	208 (22.6)
Presence of long-standing illness or health problem
	Yes	3819 (40.02)	1473 (41.63)	364 (39.5)	4566 (2); .10
	No	5422 (56.82)	1918 (54.21)	510 (55.4)
Long-term medical treatment
	Yes	3197 (33.50)	1228 (34.71)	307 (33.3)	2146 (2); .34
	No	6269 (65.70)	2266 (64.05)	596 (64.7)
Comorbidities
	No health problem	5317 (55.72)	1690 (47.76)	565 (61.3)	156.8 (4); .001
	One health problem	2122 (22.24)	722 (20.4)	167 (18.2)
	Two or more health problems	2101 (22.02)	1126 (31.82)	189 (20.5)