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Digestive Diseases and Sciences

, Volume 60, Issue 4, pp 1036–1044 | Cite as

Diabetes Mellitus, and Not Obesity, Is Associated with Lower Survival Following Liver Transplantation

  • Robert J. Wong
  • Ramsey Cheung
  • Ryan B. Perumpail
  • Edward W. Holt
  • Aijaz Ahmed
Original Article

Abstract

Background and Aims

The impact of obesity on survival following liver transplantation is unclear, and existing studies report conflicting results. Our current study aims to further delineate the impact of obesity using population-based registry data from the USA.

Methods

All US adult liver transplant recipients from 2003 to 2012 were evaluated using the United Network for Organ Sharing registry. The impact of obesity on survival following liver transplantation was further stratified into class I obesity [body mass index (BMI) 30.0–34.9 kg/m2], class II obesity (BMI 35.0–39.9 kg/m2), and class III obesity (BMI ≥ 40 kg/m2) and evaluated using Kaplan–Meier methods and multivariate Cox proportional hazards models.

Results

Overall, 57,255 patients with chronic liver disease underwent liver transplantation, among which 32.9 % had BMI ≥ 30 kg/m2. While patients in all obesity classes had similar survival to patients with BMI 18.0–24.9 kg/m2, the presence of concurrent diabetes mellitus resulted in significantly lower post-transplant survival. After multivariate regression, post-transplant survival in patients with class II obesity (HR 0.97; 95 % CI 0.89–1.05) or class III obesity (HR 0.99; 95 % CI 0.90–1.09) was not significantly lower than patients with BMI 18.0–24.9 kg/m2, but diabetes mellitus was independently associated with lower post-transplant survival (HR 1.29; 95 % CI 1.21–1.36).

Conclusion

In conclusion, obesity alone was not associated with lower post-transplant survival. However, DM, either alone or comorbid with obesity, is associated with significantly greater post-transplant mortality.

Keywords

Metabolic syndrome Body mass index Diabetes UNOS 

Abbreviations

NHANES

National Health and Nutrition Education Survey

BMI

Body mass index

HCV

Hepatitis C virus

UNOS/OPTN

United Network for Organ Sharing and Organ Procurement and Transplantation Network

HCC

Hepatocellular carcinoma

MELD

Model for end-stage liver disease

NIDDK

National Institute of Diabetes and Digestive and Kidney Diseases

Notes

Conflict of interest

None.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Robert J. Wong
    • 1
    • 7
  • Ramsey Cheung
    • 2
    • 3
  • Ryan B. Perumpail
    • 4
    • 6
  • Edward W. Holt
    • 5
  • Aijaz Ahmed
    • 2
    • 6
  1. 1.Division of Gastroenterology and HepatologyAlameda Health SystemOaklandUSA
  2. 2.Division of Gastroenterology and HepatologyStanford University School of MedicineStanfordUSA
  3. 3.Division of Gastroenterology and HepatologyVeterans Affairs Palo Alto Health Care SystemPalo AltoUSA
  4. 4.Department of MedicineStanford University School of MedicineStanfordUSA
  5. 5.Division of Hepatology, Department of TransplantationCalifornia Pacific Medical CenterSan FranciscoUSA
  6. 6.Division of Gastroenterology and Hepatology, Department of MedicineStanford University Medical CenterPalo AltoUSA
  7. 7.University of CaliforniaSan FranciscoUSA

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