Table 3 Multivariate Cox Proportional hazard method for evaluation the risk factor for predicting mortality.

From: Lower product of magnesium × potassium is associated with higher mortality in chronic hemodialysis patients: a cohort study

 

Multivariate (model 1)

Multivariate (model 2)

Multivariate (model 3)

HR

95% CI

p

HR

95% CI

p

HR

95% CI

p

lower

upper

 

lower

upper

lower

upper

Mg x K*

0.89

0.812

0.976

0.013

0.88

0.806

0.961

0.004

0.95

0.865

1.043

0.282

Age, year

1.038

1.015

1.062

 < 0.001

1.029

1.005

1.054

0.017

1.039

1.014

1.064

0.002

Diabetes mellitus, y or n

1.568

0.925

2.658

0.095

1.335

0.792

2.249

0.279

1.531

0.883

2.653

0.129

Sex, male = 1

0.957

0.584

1.567

0.86

0.927

0.567

1.516

0.763

1.031

0.609

1.744

0.911

Hemodialysis vintage, year

0.995

0.949

1.044

0.848

0.99

0.944

1.038

0.664

0.985

0.935

1.038

0.57

davies comorbidity score

    

1.285

1.143

1.445

 < 0.001

    

Serum albumin, g/dL

        

0.407

0.249

0.666

 < 0.001

hs-CRP, mg/L

        

1.015

1.009

1.022

 < 0.001

nPCR, g/kg/day

            

Serum prealbumin, mg/dL

            
 

Univariate

Multivariate

p

HR

95% CI

p

HR

95% CI

lower

upper

lower

upper

Mg x K

0.886

0.807

0.972

0.011

0.89

0.812

0.976

0.013

Age, year

1.041

1.019

1.064

 < 0.001

1.038

1.015

1.062

 < 0.001

Diabetes mellitus, y or n

1.792

1.097

2.928

0.02

1.568

0.925

2.658

0.095

Sex, male = 1

0.903

0.557

1.464

0.678

0.957

0.584

1.567

0.86

Hemodialysis vintage, year

0.975

0.932

1.021

0.281

0.995

0.949

1.044

0.848

nPCR, g/kg/day

0.797

0.289

2.201

0.661

    

Serum prealbumin, mg/dL

0.939

0.907

0.973

 < 0.001

    

Serum albumin, g/dL

0.286

0.2

0.408

 < 0.001

    

hs-CRP, mg/L

1.017

1.012

1.022

 < 0.001

    
  1. Mg, Magnesium; K, Potassium; nPCR, Normalized protein catabolism rate; hs-CRP, high sensitity-C reactive protein. *, Mg × K(t0).
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