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PLoS One. 2016 Jun 3;11(6):e0156532. doi: 10.1371/journal.pone.0156532. eCollection 2016.

Measures of Global Health Status on Dialysis Signal Early Rehospitalization Risk after Kidney Transplantation.

Author information

1
Division of Nephrology, Department of Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America.
2
Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America.
3
Department of Surgical Outcomes and Analysis, Kaiser Permanente, San Diego, California, United States of America.
4
University of Pennsylvania, Department of Biostatistics and Epidemiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
5
Renal Electrolyte & Hypertension Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
6
Division of Geriatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.

Abstract

BACKGROUND:

Early rehospitalization (<30 days) after discharge from kidney transplantation (KT) is associated with poor outcomes. We explored summary metrics of pre-transplant health status that may improve the identification of KT recipients at risk for early rehospitalization and mortality after transplant.

MATERIALS AND METHODS:

We performed a retrospective cohort study of 8,870 adult (≥ 18 years) patients on hemodialysis who received KT between 2000 and 2010 at United States transplant centers. We linked Medicare data to United Network for Organ Sharing data and data from a national dialysis provider to examine pre-KT (1) Elixhauser Comorbidity Index, (2) physical function (PF) measured by the Short Form 36 Health Survey, and (3) the number of hospitalizations during the 12 months before KT as potential predictors of early rehospitalization after KT. We also explored whether these metrics are confounders of the known association between early rehospitalization and post-transplant mortality.

RESULTS:

The median age was 52 years (interquartile range [IQR] 41, 60) and 63% were male. 29% were rehospitalized in <30 days, and 20% died during a median follow-up time of five years (IQR 3.6-6.5). In a multivariable logistic model, kidney recipients with more pre-KT Elixhauser comorbidities (adjusted odds ratio [aOR] 1.09 per comorbidity, 95% Confidence Interval [CI] 1.07-1.11), the poorest pre-KT PF (aOR 1.24, 95% CI 1.08-1.43), or >1 pre-KT hospitalizations (aOR 1.32, 95% CI 1.17-1.49) were more likely to be rehospitalized. All three health status metrics and early rehospitalization were independently associated with post-KT mortality in a multivariable Cox model (adjusted hazard ratio for rehospitalization: 1.41, 95% CI 1.28-1.56).

CONCLUSIONS:

Pre-transplant metrics of health status, measured by dialysis providers or administrative data, are independently associated with early rehospitalization and mortality risk after KT. Transplant providers may consider utilizing metrics of pre-KT global health status as early signals of vulnerability when transitioning care after KT.

PMID:
27257680
PMCID:
PMC4892690
DOI:
10.1371/journal.pone.0156532
[Indexed for MEDLINE]
Free PMC Article

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