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Table 3 The effect of the DA on the intention, HBM concepts, and ambivalence to use a self-test for cholesterol

From: The effects of a web-based decision aid on the intention to diagnostic self-testing for cholesterol and diabetes: a randomized controlled trial

Outcomea

Intention T1

  

Intention

B

95% CI

P-value

    

Groupb

-0.04

-0.18;0.09

0.54

    

Intention T0

0.40

0.29;0.51

0.00

    

Genderc

-0.08

-0.22;0.07

0.28

    

Age

-0.00

-0.01;0.00

0.44

    

Level of educationd

       

Dummy Low vs High

-0.02

-0.22;0.18

0.86

    

Dummy Intermediate vs High

-0.03

-0.18;0.12

0.74

    

Outcome a

Severity

 

Susceptibility

HBM Concepts

B

95% CI

P-value

 

B

95% CI

P-value

Groupb

-0.06

-0.16;0.04

0.23

 

-0.05

-0.16;0.06

0.40

Intention T0

0.05

-0.03;0.13

0.19

 

0.06

-0.03;0.15

0.20

Genderc

0.10

-0.01;0.20

0.07

 

0.02

-0.10;0.14

0.75

Age

0.00

-0.00;0.01

0.16

 

0.00

-0.00;0.01

0.52

Level of educationd

       

Dummy Low vs High

0.09

-0.06;0.23

0.22

 

0.11

-0.06;0.27

0.20

Dummy Intermediate vs High

0.13

0.03;0.24

0.02

 

-0.05

-0.17;0.08

0.48

Outcome a

Benefits

 

Barriers

 

B

95% CI

P-value

 

B

95% CI

P-value

Groupb

0.08

-0.01;0.17

0.08

 

0.02

-0.08;0.12

0.66

Intention T0

0.21

0.14;0.28

0.00

 

-0.12

-0.20;-0.04

0.00

Genderc

0.05

-0.05;0.14

0.33

 

-0.09

-0.19;0.02

0.10

Age

0.00

-0.00;0.00

0.86

 

0.00

-0.00;0.01

0.14

Level of educationd

       

Dummy Low vs High

-0.12

-0.25;0.01

0.07

 

0.29

0.15;0.44

0.00

Dummy Intermediate vs High

0.06

-0.04;0.16

0.20

 

0.15

0.04;0.26

0.01

Outcome a

Cues to action

 

Self-efficacy

 

B

95% CI

P-value

 

B

95% CI

P-value

Groupb

0.11

0.02;0.21

0.02

 

-0.04

-0.17;0.10

0.60

Intention T0

0.05

-0.03;0.13

0.19

 

0.15

0.04;0.27

0.01

Genderc

0.06

-0.04;0.17

0.22

 

0.06

-0.08;0.21

0.39

Age

-0.01

-0.01;-0.00

0.00

 

-0.01

-0.01;0.00

0.06

Level of educationd

       

Dummy Low vs High

-0.07

-0.21;0.08

0.37

 

-0.31

-0.51;-0.11

0.00

Dummy Intermediate vs High

-0.02

-0.12;0.09

0.76

 

-0.16

-0.31;-0.01

0.04

Outcome a

Ambivalence T1

  

Ambivalence

B

95% CI

P-value

  

Groupb

0.02

-0.16;0.21

0.80

    

Intention T0

NA

NA

NA

    

Ambivalence T0

0.51

0.42;0.60

0.00

    

Genderc

-0.25

-0.44;-0.06

0.01

    

Age

-0.01

-0.01;0.00

0.21

    

Level of educationd

       

Dummy Low vs High

-0.02

-0.29;0.25

0.88

    

Dummy Intermediate vs High

-0.01

-0.21;0.19

0.95

    
  1. aIf none of the interaction effects were significant, only the results of the model without interactions were reported.
  2. b0 = control group; 1 = intervention group.
  3. c0 = male; 1 = female.
  4. dLow = primary and secondary school, Intermediate = intermediate vocational education, High = higher vocational education and university.