Table 1 Main characteristics of the participants, overall and by degree of vaccine doubts index.

From: Joint analysis of the intention to vaccinate and to use contact tracing app during the COVID-19 pandemic

Characteristics

Overall

N = 448

Vaccine doubts index

p-value1

No doubts

N = 98

Low doubts

N = 113

Medium doubts

N = 134

High doubts

N = 103

Gender (females), N (%)

317 (71%)

68 (69%)

78 (69%)

94 (70%)

77 (75%)

0.78

Age, median (IQR)

27 (23, 46)

25 (22, 30)

25 (23, 37)

26 (22, 42)

44 (31, 50)

 < 0.001

Educational level, N (%)

 < 0.001

Middle school

33 (7.4%)

4 (4.1%)

2 (1.8%)

12 (9.0%)

15 (15%)

 

High school

197 (44%)

48 (49%)

40 (35%)

62 (46%)

47 (45%)

 

University degree or higher

218 (49%)

46 (47%)

71 (63%)

60 (45%)

41 (40%)

 

Family status, N (%)

 < 0.001

Single

220 (49%)

58 (59%)

69 (61%)

67 (50%)

26 (25%)

 

Married—living together

186 (42%)

33 (34%)

34 (30%)

51 (38%)

68 (66%)

 

Others

42 (9.4%)

7 (7.1%)

10 (8.8%)

16 (12%)

9 (8.7%)

 

Job, N (%)

 < 0.001

Employee

186 (42%)

34 (35%)

43 (38%)

53 (40%)

56 (54%)

 

Business-owner

53 (12%)

7 (7.1%)

7 (6.2%)

14 (10%)

25 (24%)

 

Retired-unemployed

35 (7.8%)

9 (9.2%)

8 (7.1%)

10 (7.5%)

8 (7.8%)

 

Student

174 (39%)

48 (49%)

55 (49%)

57 (43%)

14 (14%)

 

Salary, N (%)

0.084

 < 15 k

23 (27%)

34 (35%)

32 (28%)

30 (22%)

27 (26%)

 

15–55 k

99 (44%)

33 (34%)

45 (40%)

71 (53%)

50 (49%)

 

 > 55 k

44 (9.8%)

13 (13%)

12 (11%)

7 (5.2%)

12 (12%)

 

Unknown

82 (18%)

18 (18%)

24 (21%)

26 (19%)

14 (14%)

 

Flu vaccine in 2019–2020 done, N (%)

50 (11%)

16 (16%)

16 (14%)

16 (12%)

2 (1.9%)

 

Likelihood to get a COVID-19 vaccine, median (IQR)

90 (50, 100)

100 (95, 100)

100 (87, 100)

80 (50, 100)

0 (0, 51)

 < 0.001

Likelihood to download CTA Immuni, median (IQR)

50 (0, 88)

65 (30, 100)

55 (12, 94)

40 (3, 80)

0 (0, 50)

 < 0.001

Trust in politics and science score, median (IQR)

0.12 (− 0.74, 0.82)

0.72 (− 0.12, 1.06)

0.56 (− 0.14, 1.00)

0.12 (− 0.54, 0.63)

− 0.89 (− 1.62, − 0.14)

 < 0.001

Trust in local institution score, median (IQR)

60 (33, 80)

70 (35, 84)

55 (40, 80)

54 (38, 72)

60 (21, 80)

0.17

Self-efficacy score, median (IQR)

76 (50, 91)

80 (64, 100)

80 (66, 91)

70 (50, 85)

60 (30, 92)

 < 0.001

Conspiracy score, median (IQR)

4 (3, 6)

3.5 (2, 5)

4 (2, 5)

4 (3, 5)

6 (5, 7)

 < 0.001

COVID-19 perceived risk score, median (IQR)

0.04 (− 0.74, 0.75)

0.13 (− 0.72, 0.82)

0.15 (− 0.18, 0.88)

0.19 (− 0.28, 0.79)

− 0.89 (− 1.55, 0.34)

 < 0.001

Direct COVID-19 contact, N (%)

248 (55%)

46 (47%)

61 (54%)

79 (59%)

62 (60%)

0.21

  1. Tests are performed between characteristics and categories of vaccine doubts index.
  2. Significance values are given in bold.
  3. 1Pearson’s Chi-squared test; Kruskal–Wallis rank sum test.
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