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Abstract: PO1316

Impact of Obesity on Success of Peritoneal Dialysis in ESRD Patients

Session Information

Category: Dialysis

  • 703 Dialysis: Peritoneal Dialysis


  • Nunuk, Irene, Washington University in Saint Louis, Saint Louis, Missouri, United States
  • O Brien, Frank J., Washington University in Saint Louis, Saint Louis, Missouri, United States

Obesity rate is rising in the US and 1 in 4 adults are projected to have severe obesity by 2030. Prevalence of obesity in ESRD patients is also rising. Higher BMI has been shown to be associated with better survival in HD patients. However, data is inconsistent for PD patients. We examine the impact of different BMI classes on PD outcomes


This is a single center retrospective cohort study. Inclusion criteria includes patients >18 yrs, > 3 month PD vintage and patients who received PD from 2014-2018. Exclusion criteria includes patients with BMI <20, patients with no Kt/V data or missing BMI. SAS statistical software was used for data analysis


181 total patients are divided into 4 groups. Baseline characteristics were similar in all groups (fig 1). Outcomes include transition from PD to HD, transplantation rate, mortality rate, number of hospitalizations, PD vintage and catheter related infections. Our data showed that there is no difference in outcomes among different BMI groups (tab1, fig 2)


Our single study shows that obesity is not associated with poor peritoneal dialysis outcomes. People with high BMI should still be offered PD as a modality

OutcomesBMI 20-24.9 kg/m2BMI 25-29.9 kg/m2BMI 30-34.9 kg/m2BMI >35 kg/m2P value
Transition from PD to HD26.2%26.2%30.4%50%0.092
Number of hospitalization1.74 (1.95)2.4 (2.95)2.5 (3.06)2.3 (2.56)0.534