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Titolo	Predictors of Peritonitis in Patients on Peritoneal Dialysis: Results of a Large, Prospective Canadian Database
Autore	Sharon J. Nessim,* Joanne M. Bargman, Peter C. Austin,± Rosane Nisenbaum,§_ and Sarbjit V. Jassal *Department of Medicine, Division of Nephrology, St. Michael?s Hospital, and §Centre for Research in Inner City Health and Applied Health Research Centre, Keenan Research Centre, LiKaShing Knowledge Institute, St. Michael?s Hospital, Department of Medicine, Division of Nephrology, Toronto General Hospital-University Health Network, ±Institute for Clinical Evaluative Sciences, and _Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
Referenza	Clin J Am Soc Nephrol 2009; doi: 10.2215/CJN.00910209
Contenuto	Background and objectives: Despite the decreasing incidence of peritonitis among peritoneal dialysis (PD) patients over time, its occurrence is still associated with significant morbidity and mortality. Determining factors that are associated with PD peritonitis may facilitate the identification of patients who are at risk. Design, setting, participants, & measurements: Using data collected in the multicenter Baxter POET database between 1996 and 2005, the study population included incident Canadian PD patients. Potential predictors of peritonitis were sought using a negative binomial model and an Andersen-Gill model. Study variables included age, gender, race, cause of renal disease, diabetes status, transfer from hemodialysis (HD), previous renal transplant, and continuous ambulatory PD (CAPD) versus automated PD (APD). Results: Data were available for 4247 incident PD patients, including 1605 patients with a total of 2555 peritonitis episodes. Using the negative binomial regression model, factors that were independently associated with a higher peritonitis rate included age, black race, and having transferred from HD. There was an interaction between gender and diabetes, with an increased risk for peritonitis among female patients with diabetes. The use of CAPD versus APD did not affect the peritonitis rate. The Andersen-Gill model for recurrent events yielded similar results. Conclusions: Predictors of PD peritonitis included black race, transferring from HD to PD, and diabetes among women. In contrast to previous findings, CAPD and APD were similar with regard to peritonitis risk.
Data	11.05.2009

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