Patients were not randomly assigned to their initial type of dialysis. Results were similar but stronger in analyses that were restricted to patients who were treated only in clinics offering both types of dialysis. Results were consistent with adjustment based on a propensity score model and in sensitivity analyses that used as-treated models and models in which switches in type of dialysis were treated as treatment failures. After stratification, the survival rate was no different for patients who had the highest propensity of being initially treated with peritoneal dialysis. After adjustment, the risk for death did not differ between patients undergoing peritoneal dialysis and those undergoing hemodialysis during the first year (relative hazard, 1.39 ), but the risk became significantly higher among those undergoing peritoneal dialysis in the second year (relative hazard, 2.34 ). Twenty-five percent of patients undergoing peritoneal dialysis and 5% of hemodialysis patients switched type of dialysis. Cox proportional hazards regression stratified by clinic was used to compare the risk for death with peritoneal dialysis versus hemodialysis. Patients were followed for up to 7 years and censored at transplantation or loss to follow-up. To compare risk for death among patients with ESRD who receive peritoneal dialysis or hemodialysis.ฤก041 patients starting dialysis (274 patients receiving peritoneal dialysis and 767 patients receiving hemodialysis) at baseline. The influence of type of dialysis on survival of patients with end-stage renal disease (ESRD) is controversial.
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