Table 1.

Participant demographics by user group.

Participant demographics		User group
		Health app users	General app users	Nonusers of apps
Sample
	Number of participants, n	95	216	265
Age, years
	Minimum	61	60	61
	Maximum	82	80	90
	Mean (SD; years)	66.6 (4.7)	68.2 (5.1)	70.8 (6.1)
Gender
	Male, n (%)	54 (56.8)	117 (54.2)	124 (46.8)
	Female, n (%)	41 (43.2)	98 (45.8)	141 (53.2)
Education
	No education, n (%)	0 (0.0)	0 (0.0)	1 (0.3)
	Low level, n (%)	3 (3.1)	16 (7.4)	37 (14.0)
	Average level, n (%)	42 (44.2)	99 (45.8)	140 (52.8)
	High level, n (%)	49 (51.6)	95 (44.0)	78 (29.4)
	Other, n (%)	1 (1.1)	6 (2.8)	7 (3.5)
Technical readiness
	Range (points)	2.17-5	1.67-4.83	2.17-5
	Mean (SD; points)	3.7 (0.6)	3.4 (0.6)	2.9 (0.6)
Computer literacy
	Range (points)	2-18	3-18	1-18
	Mean (SD; points)	27.0 (3.9)	13.5 (3.7)	10.0 (5.1)
Health competence
	Range (points)	3.5-15	5-15	3.5-15
	Mean (SD; points)	11.3 (2.8)	10.8 (2.6)	10.5 (2.9)