Table 2 Personal and Internet-related characteristics of respondents on T1 and differences between patient web portal users and non-users (n = 214)

Age (M, (SD))

62 (13.2)

66 (14)^ac

63 (11)^ab

56 (11)^bc

.000

Gender (% female)

140 (65%)

69 (70%)

14 (48%)

57 (66%)

n.s.

Marital status (% living together)

170 (80%)

68 (70%)^ac

26 (90%)^a

76 (88%)^c

.000

Education level

  low

86 (40%)

54 (55%)^ac

8 (28%)a

24 (28%)^c

.001

  medium

89 (42%)

29 (29%)

15 (52%)

45 (52%)

  high

33 (15%)

11 (11%)

6 (21%)

16 (19%)

  missing

6 (3%)

4 (4%)

-

1 (1%)

Employment (% working)

72 (34%)

24 (24%)^c

10 (34%)

38 (44%)^c

.02

Health literacy (M(SD)) (n = 157)²

38.6 (7.2)

36.5 (7.6)^c

37.9 (7.2)

40.9 (6.1)^c

.001

Internet-related

Amount of Internet use

Daily/several days a week

117 (55%)

27 (27%)^c

17 (59%)^b

73 (85%)^cb

.000

One day a week or less

50 (23%)

30 (30%)

9 (31%)

11 (13%)

Missing (no home Internet access)

47 (22%)

43 (43%)

3 (10%)

1 (1%)

Years of Internet experience

  < 5 years

44 (21%)

21 (21%)^c

10 (34%)^b

13 (15%)^cb

.001

  ≥ 5 years

113 (53%)

26 (26%)

16 (55%)

71 (83%)

  Missing

57 (27%)

52 (53%)

3 (10%)

2 (2%)

Self-perceived Internet skills

  Good to very good

66 (31%)

11 (11%)^c

6 (21%)^b

49 (57%)^cb

.000

  Average to reasonable

75 (35%)

28 (28%)

16 (55%)

31 (36%)

  Poor

22 (10%)

13 (13%)

5 (17%)

4 (5%)

  Missing

51 (24%)

47 (47%)

2 (7%)

2 (2%)