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Table 2 Impact of demographic and clinical variables on mortality in chronic dialysis patients (n = 252) during follow-up (median follow-up time 3.6 years), univariate associations are shown

From: Mortality and health-related quality of life in prevalent dialysis patients: Comparison between 12-items and 36-items short-form health survey

  Hazard ratio 95% CI p-value
Age, per year increment 1.026 1.009 – 1.044 0.002
Gender, male vs female 1.209 0.768 – 1.901 0.412
Currents smoking, yes vs no 1.772 1.125 – 2.790 0.014
Work status
Able to work, yes vs no 0.510 0.186 – 1.398 0.191
Disable to work, yes vs no 1.030 0.659 – 1.610 0.896
Retired, yes vs no 1.162 0.743 – 1.819 0.510
Cause of renal failure
Glomerulonephritis, yes vs no 1.015 0.571 – 1.804 0.959
Diabetic nephropathy, yes vs no 1.704 0.987 – 2.942 0.056
Hypertensive kidney disease, yes vs no 1.147 0.723 – 1.821 0.560
Clinical variables
Dialysis vintage, per month increment 1.009 0.998 – 1-020 0.095
Log-dialysis* vintage, per unit increment 1.284 1.041 – 1.585 0.020
Previous graft failure, yes vs no 1.748 0.926 – 3.299 0.085
Rejected for renal transplantation, yes vs no 1.965 1.063 – 3.635 0.031
Dialysis modality, hemodialysis vs. peritoneal dialysis 1.091 0.632 – 1.883 0.755
Body mass index, per unit (kg/m2) increment 0.985 0.939 – 1.034 0.536
Albumin, per unit (g/l) increment 0.978 0.937 – 1.012 0.176
Hemoglobin, per unit (g/dl) increment 0.879 0.758 – 1.019 0.088
Cholesterol, per unit (mmol/l) increment 0.937 0.747 – 1.176 0.574
Diabetes, yes vs no 1.579 1.002 – 2.487 0.049
Charlsons modified comorbidity index without age, per unit increment 1.260 1.136 – 1.398 <0.001
  1. *Log-transformed dialysis vintage.
  2. Abbreviations: CI confidence interval.