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

	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

*Log-transformed dialysis vintage.

Abbreviations: CI confidence interval.