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Vitamins are associated with survival in patients with end-stage renal disease: a 4-year prospective study
Ist Teil von
Clinical nephrology, 2007-04, Vol.67 (4), p.221
Ort / Verlag
Germany
Erscheinungsjahr
2007
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Patients with end-stage renal disease are at high risk from premature death due mainly to cardiovascular disease and infections. Established risk factors do not sufficiently explain this increased mortality. We, therefore, investigated total mortality prospectively in a single-centre study in patients on hemodialysis and assessed the prognostic value of baseline disease status, laboratory variables including emerging risk factors, and the influence of vitamin treatment.
Patients (n = 102) were followed-up for 4 years or until death (n = 49). Survival was calculated by the Kaplan-Meier method. Cox-proportional hazards model was used to determine independent predictors of total mortality.
The known risk factors age, baseline clinical atherosclerotic disease, low albumin and increased cardiac troponin T were significantly associated with mortality. Patients who received multivitamins during follow-up had a significantly lower mortality risk than those not receiving this treatment (hazard ratio 0.29, 95% confidence interval 0.15-0.56). These associations remained significant after adjustment for age, cardiovascular disease, albumin and cardiac troponin T at baseline.
The present study suggests that multivitamin supplementation in patients with end-stage renal disease is closely associated with reduced mortality due to all causes. These observations have to be validated in randomized clinical intervention trials.