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. 2013 May 30;11:88. doi: 10.1186/1477-7525-11-88

Table 4.

Final regression models (SF 36 domains)

Dimensions Variables β coeff. 95% CI P values
PF R2 = 0.31
Intercept
95.4
[91.1; 99.6]
p < .0001
 
Female
-4.7
[-7.6; -1.7]
p < 0.0018
 
Age ≥ 75 years
-23.3
[-30.4; -16.2]
p < .0001
 
Low educational (primary or less)
-7.5
[-11.2; -3.8]
p < .0001
 
Unemployment
-6.3
[-9.4; -3.2]
p < .0001
 
BMI > 30 (kg/m2)
-5.8
[-10; -1.6]
p < 0.0065
 
Critical illness in the last 4 weeks
-8.0
[-14.9; -1.1]
p < 0.0237
 
Diabetes
-5.6
[-10.1; -1]
p < 0.0163
 
Side effects related to general health
-17.0
[-20.9; -13.1]
p < .0001
 
Side effects related to mental health
-6.8
[-10.5; -3]
p < 0.0004
 
Recent surgery
-9.5
[-24.9; 6]
p < 0.2283
 
Infectious disease in the last 4 weeks
-4.8
[-9.1; -0.4]
p < 0.0311
RP R2 = 0.22
Intercept
90.5
[82.8; 98.1]
p < .0001
 
Female
-6.9
[-12.2; -1.6]
p < 0.0104
 
Age ≥ 75 years
-20.1
[-33.1; -7]
p < 0.0026
 
Low educational (primary or less)
-11.4
[-18; -4.8]
p < 0.0007
 
Hospitalization in the last 4 weeks
-17.9
[-27.1; -8.8]
p < 0.0001
 
Critical illness in the last 4 weeks
-31.5
[-44.8; -18.1]
p < .0001
 
Infectious disease in the last 4 weeks
-10.9
[-19; -2.9]
p < 0.0080
 
Side effects related to general health
-21.5
[-28.7; -14.3]
p < .0001
 
Side effects related to mental health
-16.0
[-22.8; -9.1]
p < .0001
BP R2 = 0.23
Intercept
85.3
[80.6; 90]
p < .0001
 
Female
-4.9
[-8.1; -1.6]
p < 0.0035
 
Age ≥ 75 years
-8.3
[-16.1; -0.4]
p < 0.0402
 
Low educational (primary or less)
-6.5
[-10.5; -2.5]
p < 0.0016
 
Infectious disease in the last 4 weeks
-9.1
[-14; -4.3]
p < 0.0002
 
Side effects related to general health
-18.7
[-23.2; -14.2]
p < .0001
 
Side effects related to mental health
-9.7
[-14; -5.4]
p < .0001
 
Side effects related to body modification
-4.2
[-7.7; -0.7]
p < 0.0193
MH R2 = 0.24
Intercept
81.1
[77.7; 84.6]
p < .0001
 
Female
-5.6
[-8; -3.3]
p < .0001
 
Family status (living alone)
-4.6
[-7.2; -1.9]
p < 0.0007
 
Duration of dialysis > 3 years
-3.3
[-5.8; -0.8]
p < 0.0087
 
Hospitalization in the last 4 weeks
-7.7
[-11.4; -4]
p < .0001
 
Side effects related to mental health
-16.5
[-19.5; -13.5]
p < .0001
 
Side effects related to body modification
-4.4
[-6.9; -1.9]
p < 0.0005
RE R2 = 0.18
Intercept
94.8
[86.5; 103]
p < .0001
 
Female
-6.4
[-12; -0.8]
p < 0.0252
 
Low educational (primary or less)
-16.8
[-24; -9.6]
p < .0001
 
Age ≥ 75 years
-11.1
[-25.3; 3.2]
p < 0.1285
 
Family status (living alone)
-9.1
[-15.3; -2.8]
p < 0.0045
 
Hospitalization in the last 4 weeks
-17.4
[-26.7; -8.1]
p < 0.0003
 
Infectious disease in the last 4 weeks
-19.1
[-27.6; -10.7]
p < .0001
 
Side effects related to mental health
-25.0
[-32; -18.1]
p < .0001
SF R2 = 0.25
Intercept
90.8
[86.8; 94.8]
p < .0001
 
Female
-4.9
[-7.6; -2.1]
p < 0.0006
 
Family status (living alone)
-4.6
[-7.8; -1.5]
p < 0.0036
 
Hospitalization in the last 4 weeks
-11.8
[-16.2; -7.3]
p < .0001
 
Infectious disease in the last 4 weeks
-7.2
[-11.5; -2.9]
p < 0.0011
 
Diabetes
-7.5
[-11.5; -3.5]
p < 0.0002
 
Side effects related to general health
-11.3
[-15; -7.6]
p < .0001
 
Side effects related to mental health
-16.4
[-20; -12.8]
p < .0001
VT R2 = 0.22
Intercept
62.8
[59.6; 66.1]
p < .0001
 
Female
-2.4
[-4.6; -0.1]
p < 0.0366
 
Hospitalization in the last 4 weeks
-8.3
[-11.8; -4.8]
p < .0001
 
Side effects related to general health
-12
[-15; -8.9]
p < .0001
 
Side effects related to mental health
-11.7
[-14.8; -8.7]
p < .0001
 
Side effects related to body modification
-3.9
[-6.3; -1.4]
p < 0.0020
GH R2 = 0.18
Intercept
63.8
[62.1; 65.5]
p < .0001
 
Hospitalization in the last 4 weeks
-6.1
[-10.2; -2]
p < 0.0038
 
Critical illness in the last 4 weeks
-7.1
[-13.5; -0.7]
p < 0.0305
 
Diabetes
-5.4
[-9; -1.7]
p < 0.0038
 
Side effects related to general health
-11.6
[-15.1; -8.1]
p < .0001
 
Side effects related to mental health
-7.7
[-11.1; -4.2]
p < .0001
 
Side effects related to body modification
-5.6
[-8.4; -2.9]
p < .0001
 
Non-compliant
-6.3
[-9.2; -3.4]
p < .0001
PCS (R2 = 0.28)
Intercept
52.7
[50.9; 54.5]
p < .0001
 
Female
-1.7
[-3; -0.4]
p < 0.0084
 
Age ≥ 75 years
-7.7
[-11; -4.3]
p < .0001
 
Low educational (primary or less)
-3.3
[-4.9; -1.7]
p < .0001
 
Unemployment
-2.5
[-3.8; -1.1]
p < 0.0003
 
Critical illness in the last 4 weeks
-5.7
[-8.8; -2.6]
p < 0.0003
 
Infectious disease in the last 4 weeks
-3.2
[-5.1; -1.3]
p < 0.0012
 
Side effects related to general health
-9.2
[-10.8; -7.5]
p < .0001
MCS (R2 = 0.22)
Intercept
52.1
[50.3; 54]
p < .0001
 
Female
-1.7
[-3; -0.4]
p < 0.0113
 
Family status (living alone)
-2.2
[-3.7; -0.7]
p < 0.0039
 
Hospitalization in the last 4 weeks
-5.7
[-7.8; -3.6]
p < .0001
 
Side effects related to body modification
-2.5
[-3.9; -1.1]
p < 0.0005
  Side effects related to mental health -9.3 [-11; -7.7] p < .0001