Time-varying effects of body mass index on mortality among hemodialysis patients: Results from a nationwide Korean registry.

ABSTRACT:

Background

Unlike patterns observed in the general population, obesity is associated with better survival among hemodialysis patients, which could be explained by reverse causation or illness-related weight loss. However, the time-varying effect of body mass index (BMI) on hemodialysis survival has not been investigated. Therefore, this study investigated the time-varying effect of BMI on mortality after starting hemodialysis.

Methods

In the present study, we examined Korean Society of Nephrology data from 16,069 adult patients who started hemodialysis during or after the year 2000. Complete survival data were obtained from Statistics Korea. Survival analysis was performed using Cox regression and a non-proportional hazard fractional polynomial model.

Results

During t

SUBMITTER: Kim S 

PROVIDER: S-EPMC6488102 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature