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. 2004 Dec;18(6):634-7.
doi: 10.1111/j.1399-0012.2004.00141.x.

Impact of body mass index on graft failure and overall survival following liver transplant

Vinod K Rustgi  1 , Gustavo Marino, Sheila Rustgi, Michael T Halpern, Lynt B Johnson, Christine Tolleris, Tamar H Taddei
Affiliations

Impact of body mass index on graft failure and overall survival following liver transplant

Vinod K Rustgi et al. Clin Transplant. 2004 Dec.

Abstract

Goals: To assess the influence of body mass index (BMI) in the outcome of liver transplantation.

Background: Body mass index appears to affect liver transplantation, independently of several risk factors.

Study: A review of the United Network for Organ Sharing database included 32 515 liver transplants from 1992 through 2000 with at least one follow-up visit, of which 26 920 had information for determining BMI. The overall impact of elevated BMI (>25), and the impact of increasingly elevated BMI (25-40+) on graft failure rates and overall survival rates are assessed using proportional hazards regression.

Results: Controlling for follow-up time, age, gender, race, number of comorbidities, and status 1 designation, the impact of BMI on survival was mixed. The risk of death was elevated for patients with low BMI (<19) and BMI values of >/=40. Compared with patients with BMI of 19-22, those with BMI > 25 had a decreased likelihood of death. This decrease was seen among patients with BMI of 25-34.

Conclusion: BMI did not significantly affect rates of graft failure. Compared with patients with a BMI in the 'normal' range, those with moderately elevated BMI had decreased likelihood of death while patients with low BMI or extremely high BMI had increased likelihood of death.

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