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Table 5 Hierarchical regression analysis for the predictors of distress

From: Illness perceptions predict distress in patients with chronic kidney disease

Variables

Step 1 (Model 1)

Step 2 (Model 2)

Step 3 (Model 3)

Step 4 (Model 4)

β

95% CI for β

Sig

β

95% CI for β

Sig

β

95% CI for β

Sig

β

95% CI for β

Sig

Age of Participants

 − 0.15

 − 0.26 to − 0.03

0.01

0.01

 − 0.06 to 0.08

0.82

 − 0.03

 − 0.10 to 0.05

0.45

 − 0.02

 − 0.09 to 0.05

0.57

Sex

2.7

 − 0.36 to 5.76

0.08

1.96

0.20 to 3.71

0.03

2.25

0.50 to 4.00

0.01

1.96

0.32 to 3.60

0.02

eGFR (ml/min/1.73m2)

 − 0.2

 − 0.28 to − 0.12

0.00

 − 0.02

 − 0.08 to 0.03

0.37

 − 0.04

 − 0.09 to 0.01

0.13

 − 0.03

 − 0.08 to 0.03

0.32

Albumin (Serum)

 − 0.29

 − 0.64 to 0.07

0.12

 − 0.03

 − 0.24 to 0.18

0.78

 − 0.05

 − 0.26 to 0.15

0.60

 − 0.01

 − 0.20 to 0.18

0.93

Haemoglobin A1c

 − 0.41

 − 0.52 to 1.35

0.38

 − 0.38

 − 0.16 to 0.92

0.16

 − 0.47

 − 0.07 to 1.01

0.09

 − 0.52

0.02 to 1.02

0.04

IP Identity

   

0.69

0.34 to 1.05

0.00

0.66

0.30 to 1.01

0.00

0.58

0.24 to 0.92

0.00

Timeline Acute − Chronic

   

0.18

 − 0.02 to 0.39

0.04

0.27

 − 0.06 to 0.48

0.01

0.24

 − 0.04 to 0.45

0.02

Consequences

   

0.07

 − 0.21 to 0.35

0.62

0.12

 − 0.16 to 0.40

0.41

0.12

 − 0.14 to 0.38

0.35

Personal Control

   

 − 0.51

 − 0.79 to − 0.23

0.00

 − 0.44

 − 0.72 to − 0.16

0.00

 − 0.32

 − 0.58 to − 0.05

0.02

Treatment Control

   

 − 0.12

 − 0.55 to 0.31

0.58

 − 0.12

 − 0.55 to 0.31

0.59

 − 0.06

 − 0.51 to 0.39

0.79

Illness Coherence

   

 − 0.01

 − 0.30 to 0.28

0.95

 − 0.04

 − 0.34 to 0.27

0.81

0.08

 − 0.22 to 0.39

0.59

Timeline Cyclical

   

0.23

 − 0.06 to 0.51

0.12

0.02

 − 0.31 to 0.34

0.92

0.08

 − 0.25 to 0.40

0.65

Emotional Reps

   

1.01

0.77 to 1.25

0.00

1.00

0.77 to 1.24

0.00

0.84

0.61 to 1.07

0.00

BMQGeneral_Overuse

      

0.35

0.02 to 0.67

0.04

0.23

 − 0.09 to 0.55

0.16

BMQGeneral_Harm

      

0.04

 − 0.42 to 0.35

0.85

0.05

 − 0.36 to 0.46

0.81

BMQSpecific_Necessity

      

0.40

 − 0.08 to 0.88

0.10

0.42

 − 0.02 to 0.86

0.06

BMQSpecific_Concerns

      

0.08

 − 0.36 to 0.53

0.72

0.02

 − 0.41 to 0.45

0.92

Adaptive Coping

         

 − 0.09

 − 0.24 to 0.06

0.25

Maladaptive Coping

        

0.29

0.08 to 0.50

0.01

MARS5 Score

         

0.14

 − 0.16 to 0.44

0.36

  

R2 = 0.199

  

R2 = 0.771

  

R2 = 0.790

  

R2 = 0.828

 
  

F(change) = 7.716

  

F(change) = 44.865

  

F(change) = 2.940

  

F(change) = 8.943

 
  

p < 0.001

  

p < 0.001

  

p < 0.05

  

p < 0.001

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