Table 4 Descriptive statistic of 21-item PPPC-CN items by the factor (Cronbach's α)

F1 (Cronbach α: 0.851)

 1

To what extent was your main problem(s) (those regarding your disease, illness experience, and mental stress) discussed?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.63

0.74

1

0.493

2

0.416

3

0.057

4

0.034

 2

Do you think the doctor knows this 'problem' (the major problem of the first question) was one of your reasons for coming in today?

1. Yes 2. Possible 3. Uncertain 4. No

296

1.25

0.59

1

0.814

2

0.135

3

0.037

4

0.014

 3

To what extent did the doctor understand the importance of the problem?

1. Yes 2. Possible 3. Uncertain 4. No

296

1.23

0.53

1

0.807

2

0.162

3

0.020

4

0.010

 4

How well do you think the doctor understood what you expressed during the consultation today?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.34

0.55

1

0.686

2

0.294

3

0.010

4

0.010

 5

How satisfied were you with the discussion of your problem?

1. Very satisfied 2. Satisfied 3. Somewhat satisfied 4. Not very satisfied

296

1.44

0.56

1

0.591

2

0.389

3

0.014

4

0.007

 6

How satisfied were you with the discussion of your problem?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.49

0.66

1

0.591

2

0.348

3

0.044

4

0.017

 7

To what extent did you agree with the doctor's opinion about your problem?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.44

0.58

1

0.605

2

0.358

3

0.034

4

0.003

 9

To what extent did the doctor ask about your goals for treatment?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.52

0.65

1

0.554

2

0.389

3

0.044

4

0.014

 10

To what extent did the doctor explain your treatment?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.56

0.68

1

0.530

2

0.395

3

0.057

4

0.017

F2 (Cronbach α: 0.872)

 11

To what extent does the doctor discuss the feasibility of this treatment with you?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.60

0.76

1

0.530

2

0.378

3

0.054

4

0.037

 12

To what extent did you and your doctor discuss your respective roles (namely, who is responsible for making decisions and for certain aspects of your care?)

1. Completely 2. Mostly 3. A Little 4. Not at all

1.73

0.84

1

0.473

2

0.378

3

0.095

4

0.054

 13

To what extent did the doctor encourage you to take the role you wanted in the treatment and care process?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.85

0.88

1

0.405

2

0.402

3

0.128

4

0.064

 14

How much would you say that the doctor pays comprehensive attention to you?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.72

0.76

1

0.453

2

0.395

3

0.135

4

0.017

 15

To what extent does the doctor know about your family circumstances related to your condition (e.g., family history of illness, family circumstances that affect recovery, etc.)?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

2.03

1.01

1

0.375

2

0.334

3

0.176

4

0.115

 18

To what extent does the doctor consider your thoughts and feelings?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.65

0.71

1

0.470

2

0.432

3

0.078

4

0.020

 19

To what extent does the doctor show you compassion (or empathic understanding)?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.76

0.82

1

0.436

2

0.412

3

0.108

4

0.044

F3 (Cronbach α: 0.717)

 8

How many opportunities did you have to ask questions?

1. Very much 2. A little 3. Only a little 4. Not at all

296

1.49

0.69

1

0.598

2

0.338

3

0.041

4

0.024

 16

How comfortable are you when discussing your personal issues regarding your health with your doctor?

1. Completely comfortable 2. Mostly comfortable 3. A Little comfortable 4. Not very comfortable

296

1.39

0.60

1

0.669

2

0.284

3

0.041

4

0.007

 17

To what extent did your doctor respect your beliefs, values, and customs?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.51

0.66

1

0.564

2

0.372

3

0.051

4

0.014

 20

To what extent does the doctor carefully listen to what you want to say?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.40

0.58

1

0.649

2

0.311

3

0.037

4

0.003

 21

To what extent do you trust your doctor?

1. Completely 2. Mostly 3. A Little 4. Not at all

296

1.34

0.55

1

0.696

2

0.270

3

0.030

4

0.003