The association between body mass index and mortality on peritoneal dialysis: A prospective cohort study

Yong Kyun Kim, Su Hyun Kim, Hyung Wook Kim, Young OK Kim, Dong Chan Jin, Ho Chul Song, Euy Jin Choi, Yong Lim Kim, Yon Su Kim, Shin Wook Kang, Nam Ho Kim, Chul Woo Yang

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


⧫ Background: Previous studies have demonstrated that increased body mass index (BMI) is associated with decreased mortality in hemodialysis (HD) patients. However, the association between BMI and survival has not been well established in patients undergoing peritoneal dialysis (PD). The aim of the study was to determine the association between BMI and mortality in the PD popula¬tion using the Clinical Research Center (CRC) registry for end-stage renal disease (ESRD) cohort in Korea. ⧫ Methods: Prevalent patients with PD were selected from the CRC registry for ESRD, a prospective cohort study on dialysis patients in Korea. Patients were categorized into four groups by quartiles of BMI. Cox regression analysis was used to calculate the adjusted hazard ratio (HR) of mortality with a BMI of quartile 2 (21.4 - 23.5 kg/m2) as the reference. ⧫ Results: Atotalof900prevalentpatientsundergoingPD were included. The median follow-up period was 24 months. The multivariate Cox proportional hazard model showed that the lowest quartile of BMI was associated with higher mor¬tality (HR 3.00,95% confidence interval (Cl), 1.26 - 7.15). However, the higher quartiles of BMI were not associated with mortality compared with the reference category of BMI quartile 2 (Quartile 3: HR 1.11, 95% Cl, 0.43 - 2.85, Quartile 4: HR 1.64, 95% Cl, 0.66-4.06) after adjustment for clinical variables. ⧫ Conclusions: Lower BMI was a significant risk factor for death, but increased BMI was not associated with mortality in Korean PD patients.

Original languageEnglish
Pages (from-to)383-389
Number of pages7
JournalPeritoneal Dialysis International
Issue number4
Publication statusPublished - 2014

Bibliographical note

Publisher Copyright:
© 2014 International Society for Peritoneal Dialysis.

All Science Journal Classification (ASJC) codes

  • Nephrology


Dive into the research topics of 'The association between body mass index and mortality on peritoneal dialysis: A prospective cohort study'. Together they form a unique fingerprint.

Cite this