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Related Experiment Videos

Revisiting the center effect.

David W Gjertson1

  • 1UCLA Immunogenetics Center, Los Angeles, CA, USA.

Clinical Transplants
|April 12, 2007
PubMed
Summary
This summary is machine-generated.

Center performance significantly impacts early kidney transplant success, with graft survival rates varying widely. Higher-scoring centers consistently show better outcomes, regardless of patient or donor factors.

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Area of Science:

  • Nephrology
  • Transplant Surgery
  • Biostatistics

Background:

  • Center-specific outcomes in renal transplantation are crucial for patient survival.
  • Variability in one-year graft survival exists across transplant centers.
  • Understanding factors influencing center performance is essential for improving kidney transplant outcomes.

Purpose of the Study:

  • To analyze center variations in one-year renal transplant outcomes.
  • To identify the influence of center effects versus fundamental covariates on graft survival.
  • To explore associations between center performance scores and secondary transplant factors.

Main Methods:

  • Utilized a model analyzing multiple effects on data from the OPTN/UNOS Transplant Registry (1995-2005).
  • Estimated center scores for 246 centers performing 40+ renal transplants.

Related Experiment Videos

  • Analyzed associations between center scores, 5 fundamental covariates, and 15 secondary factors.

    • Main Results:

    • Adjusted one-year graft survival varied from 72% to 99%, highlighting the significant center effect.
    • The center effect was the most influential factor in early renal graft survival.
    • Higher-scoring centers tended to transplant "better" kidneys into "more favorable" recipients, but survival increased stepwise with center success across secondary variables.

    Conclusions:

    • Center-specific success rates are the primary driver of early renal graft survival.
    • Differences in center success are not solely explained by variations in known kidney transplant factors.
    • Further research into unmeasured center-specific practices may be warranted to explain outcome disparities.