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Table 3 Factors related to willingness to participate: multivariate analysis

From: Attitudes and barriers towards participation in an acupuncture trial among breast cancer patients: a survey study

 

Model 1*

Model 2+

Model 3++

 

Bivariate analysis

Multivariate analysis

Multivariate analysis

Multivariate analysis

  

Pseudo R2 = 0.20

Pseudo R2 = 0.25

Pseudo R2 = 0.36

 

O.R. (95% C.I.)

p-value

A.O.R. (95% C.I.)

p-value

A.O.R. (95% C.I.)

p-value

A.O.R. (95% C.I.)

p-value

Age

        

  ≤55

1

 

1

     

  56-65

0.67 (0.37-1.21)

0.18

0.77 (0.38-1.58)

0.48

    

  >65

0.44 (0.24-0.83)

0.011

0.85 (0.40-1.83)

0.68

    

Education

        

  High school or less

1

 

1

   

1

 

  College

4.18 (2.26-7.73)

<0.001

4.07 (1.97-8.42)

<0.001

  

4.24 (1.77-10.17)

0.001

  Graduate

1.93 (1.12-3.31)

0.018

1.86 (0.97-3.56)

0.062

  

1.27 (0.62-2.61)

0.51

Radiation therapy

        

  No

1

 

1

   

1

 

  Yes

1.79 (1.10-2.89)

0.017

2.09 (1.16-3.76)

0.014

  

2.72 (1.39-5.32)

0.004

CAM use

        

  No

1

 

1

     

  Yes

2.36 (1.46-3.82)

<0.001

1.26 (0.71-2.24)

0.43

    

Joint pain during past 7 days

        

  None

1

 

1

   

1

 

  Mild/moderate

1.98 (1.06-3.71)

0.032

2.06 (0.96-4.44)

0.064

  

1.48 (0.61-3.57)

0.38

  Severe or more

2.60 (1.19-5.67)

0.017

3.49 (1.34-9.04)

0.01

  

2.77 (0.89-8.59)

0.078

Co-morbidity

        

  No

1

 

1

     

  Yes

0.58 (0.35-0.97)

0.038

0.65 (0.34-1.23)

0.19

    

Acupuncture expectancy scale

1.19 (1.12-1.26)

<0.001

1.20 (1.12-1.28)

<0.001

  

1.17 (1.08-1.26)

<0.001

Travel difficulty

        

  Disagree

1

   

1

 

1

 

  Agree

0.27 (0.16-0.44)

<0.001

  

0.41 (0.23-0.75)

0.003

0.36 (0.19-0.68)

0.002

Concern with experimentation

        

  Disagree

1

   

1

 

1

 

  Agree

0.13 (0.069-0.26)

<0.001

  

0.34 (0.14-0.81)

0.015

0.31 (0.13-0.78)

0.013

Don't want placebo

        

  Disagree

1

   

1

   

  Agree

0.40 (0.24-0.64)

<0.001

  

0.96 (0.50-1.83)

0.90

  

Demanding job

        

  Disagree

1

   

1

   

  Agree

0.73 (0.45-1.18)

0.196

  

1.10 (0.58-2.09)

0.77

  

Home responsibilities

        

  Disagree

1

   

1

   

  Agree

0.39 (0.24-0.62)

<0.001

  

0.77 (0.41-1.42)

0.40

  

Not interested in acupuncture

        

  Disagree

1

   

1

   

  Agree

0.051(0.022-0.12)

<0.001

  

0.098 (0.040-0.24)

<0.001

0.12 (0.043-0.35)

<0.001

  1. *Model 1: Multivariate analysis on sociodemographic and clinical factors related to willingness to participate.
  2. +Model 2: Multivariate analysis on barriers related to willingness to participate.
  3. ++Model 3: Multivariate analysis on factors significant in Model 2 and 3 related to willingness to participate.