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Table 3 The influence of personal factors on decisional conflict subscale scores-results from the univariate analysis

From: When study site contributes to outcomes in a multi-center randomized trial: a secondary analysis of decisional conflict in men with localized prostate cancer

Variable

Decisional uncertainty

Informed subscale

Values clarity subscale

Support subscale

Estimate

p-value

Estimate

p-value

Estimate

p-value

Estimate

p-value

*Study center

 

<.0001

 

0.03

 

0.13

 

0.07

?Augusta

?4.67

 

?2.72

 

?1.99

 

?7.00

 

?Philadelphia

12.62

 

?1.10

 

2.60

 

?3.47

 

?San Antonio

?2.86

 

6.05

 

9.82

 

?7.02

 

?Seattle UW-SCCA

13.66

 

5.37

 

2.61

 

?2.32

 

Age

?0.24

0.17

 

0.87

 

0.62

 

0.81

Treatment preference at baseline (no vs. yes)

27.3

<.0001

16.6

<.0001

14.32

<.0001

8.40

<.0001

Education (college no vs. yes)

?6.62

0.008

 

0.54

 

0.22

 

0.90

Income (>35K vs. <35k)

10.8

0.0002

3.64

0.16

 

0.63

 

0.60

Caucasian (no vs. yes)

?14.5

<.0001

?4.39

0.12

 

0.52

?3.22

0.10

P3P access (Clinic vs. Not Clinic)

?13.8

<.0001

?3.76

0.11

?5.72

0.007

?2.40

0.14

Married/partnered (no vs. yes)

 

0.93

 

0.28

 

0.58

4.51

0.01

Number of doctors consulted

 

0.0004

 

<.0001

 

0.003

 

0.002

?0 vs. >1

  

13.55

 

7.94

 

5.64

 

?1 vs. >1

  

5.54

 

2.10

 

?0.05

 

Working status (No vs. yes)

?6.05

0.02

?3.08

0.16

 

0.27

 

0.86

Perceived knowledge

 

0.38

 

<.0001

 

<.0001

 

<.0001

?Fair/A lot vs. some

  

?19.52

 

?11.72

 

?3.87

 

?None/little vs. some

  

3.76

 

6.88

 

7.73

 

**STAI

        

State anxiety

0.75

<.0001

0.50

<.0001

0.41

<.0001

0.44

<.0001

Trait anxiety

0.31

0.01

0.35

0.001

0.35

0.0002

0.43

<.0001

***EPIC scale

        

Urinary irritative symptoms

?0.1

0.2

?0.1

0.18

 

0.17

 

0.61

Urinary incontinence symptoms

 

1.0

 

0.82

 

0.81

 

0.45

Bowel symptoms

0.1

0.39

 

0.62

 

0.65

 

0.92

Sexual symptoms

0.06

0.16

?0.08

0.02

?0.06

0.07

 

0.90

Hormonal symptoms

?0.03

0.72

?0.2

0.02

?0.15

0.05

?0.16

0.005

Information Sources

        

Self (no vs. yes)

?8.16

0.001

7.32

0.001

4.89

0.01

 

0.84

Health care provider (no vs. yes)

4.08

0.17

7.27

0.005

7.10

0.002

4.22

0.02

Media (no vs. yes)

?13.98

<.0001

 

0.56

 

0.57

 

0.81

Other people (no vs. yes)

 

0.22

 

0.25

 

0.70

 

0.59

  1. Note: Higher subscale scores indicate more decisional conflict; *Seattle/University of Washington VA is the reference group; **STAI = State Trait Anxiety Inventory; ***EPIC = Expanded Prostate Index Composite-Short Form.