Table 2 Associations between basic characteristics and knowledge, attitudes, and intentions

Gender

-0.294

-0.767

-0.062

-0.582

0.384

-0.866

-2.201^*

-2.957^**

0.813

 Male

2.26

0.63

1.63

46.75

46.00

45.07

37.75

18.61

10.98

 Female

2.45

0.79

1.66

47.53

45.37

46.01

40.32

20.69

10.56

Age^a

3.234^*

2.668^*

3.162^*

2.748^*

1.616

3.469^*

2.663^*

0.565

1.168

  < 49y/o

3.05

1.05

2.00

49.75

42.17

48.02

41.69

20.55

10.65

 50 ~ 64y/o

3.10

0.86

2.24

47.93

45.86

46.24

39.35

19.29

11.25

 65 ~ 74y/o

0.84

0.24

0.60

44.16

48.17

43.26

37.55

19.24

10.71

  ≥ 75 y/o

1.48

0.48

1.00

45.79

45.88

43.76

36.48

19.24

9.99

 Post Hoc

Level of education^a

7.922^***

4.550^*

8.626^***

5.748^**

4.586^*

3.283^*

1.805

2.786

0.360

 Below Junior High School

0.95

0.31

0.64

44.07

49.13

43.69

37.27

18.60

10.70

 Junior High School

2.08

0.69

1.40

47.42

45.21

45.47

38.89

19.17

10.63

 College and above

3.93

1.07

2.86

49.45

43.20

47.07

40.14

20.61

11.12

 Post Hoc

3 > 2 > 1

3 > 1

3 > 2 > 1

3 > 1

1 > 3

3 > 1

Marriage^a

4.600^*

6.172^**

3.556^*

0.775

1.109

0.835

4.998^**

2.359

0.369

 Married

2.28

0.63

1.64

50.73

42.27

45.23

38.81

19.37

10.79

 Single

3.95

1.40

2.55

52.90

39.02

47.02

41.59

20.90

11.20

 Divorced, Separated, Widowed

0.00

0.00

0.00

49.63

43.09

44.64

33.73

17.73

10.27

 Post Hoc

2 > 3

2 > 1,3

2 > 3

2 > 3

Religon^a

0.653

0.626

0.706

3.067

2.097

1.612

1.504

1.092

0.149

 No

1.73

0.55

1.18

49.91

39.03

43.85

38.12

18.57

10.97

 Buddhism or Taoism

2.53

0.72

1.81

51.97

42.91

46.06

38.66

19.76

10.80

 Roman Catholicism or Christianity

2.70

1.00

1.70

45.90

41.80

45.60

42.30

19.87

10.40

 Post Hoc

Residential Status^a

0.009

0.077

0.062

4.377^*

0.222

1.267

0.676

0.018

0.342

 Living Alone

2.38

0.75

1.63

42.25

47.50

42.38

36.13

19.50

11.38

 Living with Family

2.34

0.69

1.66

47.58

45.58

45.62

38.97

19.45

10.75

 Living with Others

2.00

1.00

1.00

36.00

48.00

48.00

40.00

20.00

12.00

 Post Hoc

Financial Status^a

1.315

0.441

1.735

0.635

1.118

0.700

0.740

1.651

3.250^*

 Sufficient work income to support

2.80

0.82

1.98

48.20

43.89

45.23

39.11

19.82

11.07

 Sufficient savings or retirement funds to support

2.88

0.74

2.15

45.91

46.89

46.52

39.50

18.38

11.64

 Depend on family and friends for support

1.60

0.58

1.02

46.79

46.25

44.66

38.50

20.17

9.76

 Depend on social assistance for support

1.29

0.43

0.86

47.14

48.95

46.62

35.43

18.14

11.57

 Post Hoc

2 > 3

Comorbidity^t

 Hypertension

0.689

0.865

0.549

0.424

-2.456^*

-.392

0.469

0.913

-2.123^*

  Yes

2.52

0.77

1.75

47.31

44.09

45.28

39.05

19.74

10.36

  No

2.09

0.59

1.50

46.74

48.04

45.70

38.47

19.08

11.44

 Cardiovascular disease

-0.80

-0.348

-0.950

-3.483^***

0.473

-1.476

-1.886

-2.004^*

0.110

  Yes

1.91

0.64

1.27

43.33

46.39

44.12

36.89

18.26

10.85

  No

2.49

0.72

1.77

48.35

45.52

45.91

39.47

19.88

10.80

 Diabetes mellitus

-2.076^*

-2.170^*

-1.901

-1.148

0.602

0.946

-0.352

-0.687

1.050

  Yes

1.58

0.44

1.13

46.15

46.33

46.07

38.55

19.17

11.14

  No

2.86

0.87

1.99

47.69

45.34

45.04

38.98

19.67

10.59

 Heart failure

0.699

0.979

0.696

2.216^*

-1.431

-0.398

2.448^*

1.437

-0.321

  Yes

4.00

1.20

2.80

54.20

40.00

44.40

46.00

22.00

10.40

  No

2.27

0.68

1.60

46.78

45.97

45.50

38.52

19.36

10.83

 Ischemic heart disease

0.089

0.091

0.083

-1.041

-1.273

-3.578^*

0.651

0.268

-0.154

  Yes

2.50

0.75

1.75

43.25

40.00

40.50

41.00

20.00

10.76

  No

2.34

0.70

1.64

47.19

45.92

45.62

38.74

19.45

10.81

 Dyslipidemia

-0.116

-0.266

-0.041

-1.334

-0.903

-1.089

-1.361

-0.437

0.218

  Yes

2.23

0.62

1.62

44.46

43.56

43.73

36.37

19.00

10.98

  No

2.35

0.71

1.65

47.36

45.98

45.65

39.08

19.52

10.79

 Peptic ulcer disease

0.417

-0.190

0.663

1.020

0.076

0.088

1.483

0.188

0.621

  Yes

3.00

0.60

2.40

50.40

46.05

45.69

39.76

19.80

11.60

  No

2.31

0.70

1.61

46.93

45.73

45.45

38.77

19.45

10.78

 Stroke

0.089

0.091

0.083

1.073

-0.384

0.182

-0.396

-0.736

1.011

  Yes

2.50

0.75

1.75

51.00

44.00

46.00

37.47

18.00

12.25

  No

2.34

0.70

1.64

46.94

45.80

45.44

38.85

19.51

10.76

 Arrhythmia

1.233

0.424

1.320

0.409

1.414

-0.931

-1.549

-0.801

-0.041

  Yes

3.25

0.80

2.45

47.70

48.40

44.30

36.64

18.80

10.78

  No

2.17

0.68

1.50

46.95

45.25

45.67

39.20

19.59

10.81

 Cancer

0.290

0.588

0.137

0.223

1.008

-0.013

1.542

-0.827

2.016^*

  Yes

2.80

1.00

1.80

47.80

49.80

45.40

43.40

18.00

13.34

  No

2.32

0.69

1.64

47.04

45.58

45.46

38.62

19.52

10.71

 Other

1.994^*

2.124^*

1.615

0.756

-2.936^**

0.729

0.387

1.556

-0.303

  Yes

3.84

1.32

2.53

48.26

40.19

46.39

39.37

20.79

10.58

  No

2.08

0.59

1.49

46.86

46.70

45.30

38.71

19.24

10.85

 Times of weekly hemodialysis

0.636

1.703

0.119

2.628^*

-0.578

0.141

0.767

1.202

-0.185

  2

3.13

1.38

1.75

53.63

43.92

45.75

40.60

21.13

10.63

  3

2.29

0.65

1.64

46.63

45.86

45.44

38.69

19.36

10.82

 Vintage of hemodialysis^a

1.657

0.831

1.885

2.761

3.783^*

1.133

0.216

0.462

0.616

  Less than 5 years

1.73

0.56

1.17

47.34

43.95

45.64

39.18

19.75

10.76

  6–10 years

3.00

0.86

2.14

44.92

49.08

46.31

38.74

18.94

11.21

   > 10years

2.70

0.76

1.94

49.00

45.19

44.18

38.21

19.54

10.45

  Post Hoc

2 > 1

Primary reasons for choosing the current dialysis method^a

0.431

0.375

0.403

0.285

0.093

1.115

0.139

0.400

0.642

 Doctor’s recommendation

2.40

0.72

1.67

46.83

45.74

44.87

38.95

19.66

10.62

 Personal preference

2.34

0.68

1.66

47.36

45.61

46.54

38.45

19.05

11.20

 Family’s expectations

0.00

0.00

0.00

50.50

48.50

46.00

40.50

20.50

10.00

 Post Hoc

(Formerly) Engaged in medical-related work^t

1.353

1.067

1.390

-0.604

-0.076

-0.642

-0.131

-0.155

-0.563

 Yes

4.00

1.13

2.88

44.63

45.50

44.13

38.50

19.25

10.25

 No

2.23

0.67

1.56

47.23

45.76

45.54

38.83

19.48

10.85

Feeling uncertain about the current dialysis decision^t

-2.462^*

-1.049

-2.983^**

0.696

-0.742

-0.426

-0.557

-0.424

-2.160^*

 Yes

0.80

0.40

0.40

48.33

44.08

44.83

37.57

19.05

9.31

 No

2.54

0.74

1.81

46.90

45.96

45.54

38.97

19.52

11.01

Have already signed a Do Not Resuscitate (DNR) order or an Advance Directive for Palliative and Life-Sustaining Treatment^t

1.189

1.371

1.313

2.526^*

-0.944

0.030

-0.573

1.561

-1.978

 Yes

3.47

1.06

2.41

51.24

43.78

45.50

37.92

20.88

9.53

 No

2.17

0.64

1.53

46.44

46.04

45.45

38.94

19.25

11.00

Healthcare professionals have discussed the prognosis and estimated survival time of dialysis with you and your family^t

1.526

1.571

1.482

1.875

0.463

-0.091

-0.206

1.873

0.224

 Yes

3.79

1.16

2.63

50.00

46.64

45.34

38.51

21.05

10.95

 No

2.09

0.62

1.47

46.56

45.58

45.48

38.86

19.19

10.79

Healthcare professionals have discussed medical decisions in case the condition worsens and becomes life-threatening with you or your family^t

1.011

1.404

0.902

3.167^**

-0.748

0.569

0.978

1.399

0.213

 Yes

3.33

1.06

2.28

52.06

44.23

46.45

40.27

20.44

10.94

 No

2.18

0.64

1.54

46.26

45.98

45.30

38.57

19.31

10.79

Healthcare professionals have provided you or your family with information about Advance Care Planning (ACP) and Advance Directive (AD)^t

2.499^*

2.595^*

1.538

1.143

-0.134

0.779

-0.524

0.413

-1.271

 Yes

6.20

2.00

4.20

50.80

45.20

47.52

36.20

20.20

9.20

 No

2.19

0.65

1.54

46.92

45.76

45.37

38.91

19.44

10.87

Have previously discussed medical decisions in case the condition worsens and becomes life-threatening with your family^t

3.794^***

3.541^**

3.647^**

3.585^***

-0.594

2.318^*

2.726^**

4.118^***

-1.297

 Yes

4.28

1.28

3.00

50.43

45.02

47.27

41.19

21.53

10.32

 No

1.47

0.44

1.03

45.56

46.06

44.64

37.73

18.54

11.03