Risk Factors for Early-Onset Peritonitis in Southern Chinese Peritoneal Dialysis Patients

Author:

Wu Haishan1,Huang Rong1,Yi Chunyan1,Wu Juan1,Guo Qunying1,Zhou Qian1,Yu Xueqing1,Yang Xiao1

Affiliation:

1. Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China; Key Laboratory of Nephrology, Ministry of Health, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, People's Republic of China

Abstract

BackgroundEarly peritonitis was confirmed to be associated with a higher risk of early technique failure. However, literature concerning peritonitis within the first 3 months of peritoneal dialysis (PD) initiation is scarce. The present study was to investigate risk factors associated with early-onset peritonitis in PD patients.MethodsIn this retrospective observational cohort study, all incident PD patients from January 1, 2006, to December 31, 2013, were recruited and followed up until December 31, 2014. According to time-to-first episode of peritonitis, patients were divided into early-onset (≤ 3 months) peritonitis and late-onset (> 3 months) peritonitis. Baseline demographic, clinical, and laboratory data, as well as episodes of peritonitis, were collected. Risk factors associated with early-onset peritonitis were evaluated using logistic regression model.ResultsOf 1,690 patients on PD, 503 (29.8%) developed at least 1 episode of peritonitis and 118 (7.0%) patients presented the first episodes of peritonitis within the first 3 months. A multivariate logistic analysis showed that higher body mass index (BMI) (odds ratio [OR] 1.08, 95% confidence interval [CI] 1.01 – 1.15, p = 0.034), hypoalbuminemia (OR 1.75, 95% CI 1.11 – 2.78, p = 0.017), and catheter exit-site infection (OR 4.14, 95% CI 2.45 – 7.00, p < 0.001) were risk factors independently associated with early-onset peritonitis. Compared to those with late-onset, patients with early-onset peritonitis had a higher overall peritonitis rate (0.76 vs 0.38 per patient-year, p < 0.001) and worse technique survival ( p < 0.001), while patient survival did not differ significantly between the 2 groups during the long-term follow-up ( p > 0.05).ConclusionsHigher BMI, hypoalbuminemia, and catheter exit-site infection were the risk factors associated with early-onset peritonitis in PD patients.

Publisher

SAGE Publications

Subject

Nephrology,General Medicine

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