title: Improving survival rate of Korean patients initiating dialysis.
abstract: OBJECTIVE
  The aim of this study was to investigate whether the survival rate among Korean dialysis patients changed during the period between 2005 and 2008 in Korea.
  
  
  METHODS
  A total of 32357 patients who began dialysis between January 1, 2005 and December 31, 2008 were eligible for analysis. Baseline demographics, comorbidities, and mortality data were obtained from the database of the Health Insurance Review & Assessment Service.
  
  
  RESULTS
  Kaplan-Meier curves according to the year of dialysis initiation showed that the survival rate was significantly different (log-rank test, p=0.005), most notably among peritoneal dialysis (PD) patients (p<0.001), although not among hemodialysis (HD) patients (p=0.497). In multivariate analysis, however, patients initiating either HD or PD in 2008 also had a significantly lower risk of mortality compared to those who began dialysis in 2005. Subgroup survival analysis among patients initiating dialysis in 2008 revealed that the survival rate of PD patients was significantly higher than that of HD patients (p=0.001), and the survival benefit of PD over HD remained in non-diabetic patients aged less than 65 years after adjustment of covariates.
  
  
  CONCLUSIONS
  Survival of Korean patients initiating dialysis from 2005 to 2008 has improved over time, particularly in PD patients. In addition, survival rates among patients initiating dialysis in 2008 were different according to patients' age and diabetes, thus we need to consider these factors when dialysis modality should be chosen.
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Jung-Hwa
authors.initials: JH
authors.lastname: Ryu
authors.affiliation: Department of Internal Medicine, Wonkwang University College of Medicine, Sanbon Hospital, Gunpo, Korea.
authors.forename: Hyunwook
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Public Health, Graduate School, Korea University, Seoul, Korea.
authors.forename: Kyoung Hoon
authors.initials: KH
authors.lastname: Kim
authors.affiliation: Ewha Medical Research Institute, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Hoo Jae
authors.initials: HJ
authors.lastname: Hann
authors.affiliation: Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea.
authors.forename: Hyeong Sik
authors.initials: HS
authors.lastname: Ahn
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Shina
authors.initials: S
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Seung-Jung
authors.initials: SJ
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Duk-Hee
authors.initials: DH
authors.lastname: Kang
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
authors.forename: Kyu Bok
authors.initials: KB
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Korea. drryu@ewha.ac.kr.
authors.forename: Dong-Ryeol
authors.initials: DR
authors.lastname: Ryu
mesh_terms: D000328:Adult; D000368:Aged; D015897:Comorbidity; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D007676:Kidney Failure, Chronic / Q000401:mortality* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D010530:Peritoneal Dialysis / Q000706:statistics & numerical data*; D012042:Registries; D006435:Renal Dialysis / Q000706:statistics & numerical data*; D056910:Republic of Korea / Q000453:epidemiology; D012306:Risk; D016019:Survival Analysis; D015996:Survival Rate / Q000639:trends*; D016896:Treatment Outcome
keywords: Korea; Survival; hemodialysis; peritoneal dialysis
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