Functional

literacy

Basic health

knowledge

Communicative

literacy

Interactive

literacy

Advanced health

Knowledge

Critical

Literacy

Patient safety

Total

Age (Y)

≤50 (n = 131)

>50 - 60 (n = 129)

>60 (n = 179)

3.42 ± 1.08

2.95 ± 1.16

2.48 ± 1.30

3.34 ± 0.62

3.11 ± 0.64

2.93 ± 0.69

2.32 ± 1.16

1.54 ± 1.12

1.25 ± 1.12

2.74 ± 0.56

2.52 ± 0.67

2.40 ± 0.77

2.48 ± 1.06

1.72 ± 1.36

1.23 ± 1.18

1.70 ± 0.50

1.79 ± 0.42

1.72 ± 0.51

1.92 ± 0.26

1.86 ± 0.36

1.74 ± 0.46

17.94 ± 3.46

15.51 ± 3.96

13.77 ± 4.32

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.251

<0.001*

<0.001*

Sex

Male (n = 253)

Female (n = 186)

3.09 ± 1.23

2.64 ± 1.25

3.13 ± 0.69

3.08 ± 0.66

1.82 ± 1.21

1.43 ± 1.18

2.56 ± 0.67

2.51 ± 0.72

2.02 ± 1.34

1.38 ± 1.16

1.77 ± 0.48

1.69 ± 0.49

1.86 ± 0.35

1.79 ± 0.43

16.26 ± 4.28

14.54 ± 4.19

P value

<0.001*

0.448

0.001*

0.456

<0.001*

0.128

0.053

<0.001*

Education Level

Low (n = 202)

Moderate to high (n = 237)

1.90 ± 0.84

3.75 ± 0.86

2.72 ± 0.60

3.43 ± 0.56

0.83 ± 0.86

2.37 ± 1.0

2.28 ± 0.80

2.75 ± 0.50

0.82 ± 0.89

2.54 ± 1.06

1.71 ± 0.48

1.75 ± 0.49

1.68 ± 0.49

1.95 ± 0.20

11.97 ± 2.93

18.56 ± 2.70

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.373

<0.001*

<0.001*

Income

Low

Moderate +high

2.45 ± 1.07

4.27 ± 0.66

2.95 ± 0.66

3.58 ± 0.51

1.26 ± 1.02

2.85 ± 0.96

2.42 ± 0.75

2.88 ± 0.31

1.32 ± 1.06

3.05 ± 1.10

1.68 ± 0.48

1.89 ± 0.47

1.77 ± 0.43

2.0 ± 0.0

13.89 ± 3.53

20.55 ± 2.07

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.373

<0.001*

<0.001*

Primary Caregiver

Self or spouse (n = 257)

Child or others (n = 182)

3.21 ± 1.09

2.46 ± 1.34

3.24 ± 0.64

2.92 ± 0.69

1.90 ± 1.18

1.31 ± 1.18

2.65 ± 0.57

2.37 ± 0.82

2.19 ± 1.24

1.13 ± 1.14

1.74 ± 0.48

1.73 ± 0.49

1.88 ± 0.32

1.75 ± 0.45

16.82 ± 3.72

13.71 ± 4.46

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.884

0.001*

<0.001*

Kidney transplant

Yes (n = 45)

No (n = 394)

4.08 ± 0.79

2.76 ± 1.23

3.57 ± 0.46

3.05 ± 0.68

2.91 ± 1.04

1.51 ± 1.15

2.84 ± 0.36

2.50 ± 0.72

3.08 ± 0.73

1.60 ± 1.27

1.86 ± 0.45

1.72 ± 0.49

2.0 ± 0.0

1.81 ± 0.40

20.37 ± 2.19

14.97 ± 4.16

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.057

<0.001*

<0.001*

Adherence to treatment

No (n = 200)

Yes (n = 239)

2.21 ± 1.18

3.48 ± 1.0

2.82 ± 0.65

3.34 ± 0.61

1.04 ± 1.07

2.16 ± 1.09

2.34 ± 0.80

2.70 ± 0.54

0.99 ± 1.08

2.38 ± 1.13

1.76 ± 0.46

1.71 ± 0.50

1.72 ± 0.46

1.92 ± 0.27

12.91 ± 4.02

17.72 ± 3.20

P value

<0.001*

<0.001*

<0.001*

<0.001*

<0.001*

0.168

<0.001*

<0.001*