Table 2 Adjusted coefficients and 95% CrI estimated by a Bayesian bivariate Gaussian regression model for the position parameter (\({\mu }_{1}\) and \({\mu }_{2}\)) the score of likelihood to get a COVID-19 vaccine and to download CTA Immuni, and their correlation rhogit(\(\rho\)) respect to the reference category.

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

 

COVID-19 vaccine

CTA Immuni

rhogit(\(\rho\))

\(\widehat{{\beta }_{1}}\)

95% CrI

\(\widehat{{\beta }_{2}}\)

95% CrI

\(\widehat{{\beta }_{3}}\)

95% CrI

Intercept

57.44

44.36

70.77

30.00

13.96

46.82

− 0.09

− 0.65

0.41

Vaccine doubts index

Low (1, 14)

− 2.39

− 6.09

1.58

− 7.43

− 17.64

2.67

0.11

− 0.25

0.44

Medium (14, 50)

 − 11.76

 − 16.42

 − 7.33

− 8.90

− 18.88

0.99

0.35

− 0.01

0.70

High (50, 100)

 − 38.42

 − 46.39

 − 30.64

 − 14.60

 − 25.16

 − 3.90

0.34

− 0.03

0.71

Flu vaccine 2019–2020 done [Yes]

7.85

4.24

11.66

11.30

− 1.28

23.37

0.03

− 0.34

0.41

COVID-19 perceived risk score

Medium (− 0.431, 0.545)

9.23

4.06

14.08

2.40

− 5.34

10.27

− 0.16

− 0.43

0.12

High (− 0.545, 1.71)

12.73

7.63

18.04

18.64

9.68

27.88

 − 0.34

 − 0.64

 − 0.03

Trust in politics and science score

Medium (− 0.407, 0.623)

8.29

2.77

14.27

15.40

6.31

23.98

 − 0.41

 − 0.68

 − 0.11

High (0.623, 1.53)

11.44

5.57

17.63

29.52

20.63

38.60

0.01

− 0.31

0.31

Gender (male)

1.63

 − 2.27

5.34

1.19

 − 4.85

7.68

 − 0.20

 − 0.47

0.02

Job category

Business-owner

 − 13.05

 − 22.46

 − 4.21

 − 3.98

 − 12.88

5.36

0.65

0.25

1.08

Retired or unemployed

2.87

 − 6.61

12.56

14.58

2.68

27.23

0.17

 − 0.29

0.66

Student

 − 1.30

 − 5.62

3.30

 − 2.10

 − 11.20

7.55

0.20

 − 0.11

0.52

Education level

High school

14.24

3.12

25.80

 − 1.88

 − 14.94

10.57

0.20

 − 0.27

0.69

University degree or higher

15.08

2.85

26.81

4.45

 − 9.65

17.10

0.32

 − 0.15

0.85

  1. In bold 95% CrI outside the null effect.
  2. Adjusted also by age with penalized cubic splines with 5 equally spaced knots (Fig. 3).
  3. Reference category: Vaccine doubts index (No doubt), Flu vaccine 2019–2020 done (No), COVID-19 perceived risk score (Low), Trust in politics and science score (Low), Gender (Female), Job (Employee), Education level (Middle school).
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