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Activity Number: 128
Type: Contributed
Date/Time: Monday, August 10, 2015 : 8:30 AM to 10:20 AM
Sponsor: WNAR
Abstract #315797 View Presentation
Title: Predicting Risk of End-Stage Kidney Disease Using Criteria to Guide Disease Management
Author(s): Yuxiang Xie* and Marlena Maziarz and Yoshio Hall
Companies: University of Washington and University of Washington and University of Washington
Keywords: risk prediction ; chronic kidney disease ; population health ; health disparities ; vulnerable populations
Abstract:

The objective was to examine the capacity of models to estimate risk of end-stage renal disease using variables from the electronic health records. We conducted a retrospective cohort study of 28,779 persons with chronic kidney disease (CKD) who received care during 1996-2009. We ascertained ESRD from the national registry thru 2011. We developed and evaluated the performance of proportional hazards models to estimate ESRD risk using criteria: 1) proportion of cases followed (PCF) and 2) proportion of the population needed to be followed (PNF). A model that included 5 common variables (age, race, sex, eGFR, dipstick proteinuria) from the EHR performed well in discriminating progressors and non-progressors, capturing 80% of cases at year 5 by following 13% of the cohort at highest ESRD risk (PNF[.80]=.13). This model performed well in subgroups with hypertension or diabetes. Performance declined substantially in subgroups with moderate (PNF[.80]=.25) and with severe CKD (PNF[.80]=.45). We concluded that a simple model using common variables from the EHR can be used to predict most cases of ESRD. This model may help to guide surveillance in cohorts with low or modest rates of ESRD.


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