C-reactive protein-to-albumin ratio is a predictor of 1-year mortality following liver transplantation

Author:

Kim Kyoung-SunORCID,Kwon Hye-MeeORCID,Kim Jae HwanORCID,Yang Ji-WoongORCID,Jun In-GuORCID,Song Jun-GolORCID,Hwang Gyu-SamORCID

Abstract

Background: Considering the importance of the inflammatory status of recipients on outcomes following liver transplantation (LT), we investigated the association between C-reactive protein-to-albumin ratio (CAR) and one-year mortality following LT and compared it with other parameters reflecting patients’ underlying inflammatory status.Methods: A total of 3,614 consecutive adult LT recipients were retrospectively evaluated. Prognostic parameters were analyzed using area under the receiver operating characteristic curve (AUROC) analysis, and subsequent cutoffs were derived. For survival analysis, Cox proportional hazards and Kaplan-Meier analyses were performed.Results: The AUROC for CAR to predict one-year mortality after LT was 0.68 (0.65–0.72), which was the highest compared with other inflammatory parameters, with the best cutoff of 0.34. A CAR ≥ 0.34 was associated with a significantly higher one-year mortality rate (13.3% vs. 5.8 %, log-rank P < 0.001) and overall mortality rate (24.5% vs. 12.9%, log-rank P = 0.039). A CAR ≥ 0.34 was an independent predictor of one-year mortality (hazard ratio, 1.40 [1.03–1.90], P = 0.031) and overall mortality (hazard ratio 1.39 [1.13–1.71], P = 0.002) after multivariable adjustment.Conclusions: Preoperative CAR (≥ 0.34) was independently associated with a higher risk of one-year and overall mortality after LT. This may suggest that CAR, a simple and readily available biomarker, maybe a practical index that may assist in the risk stratification of liver transplantation outcomes.

Funder

Ministry of Health and Welfare

Publisher

The Korean Society of Anesthesiologists

Subject

General Medicine

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