MELD 3.0 Score

The MELD 3.0 Score (Model for End-Stage Liver Disease 3.0) is the latest and most refined version of a critical prognostic scoring system, used globally to estimate short-term mortality (typically within 90 days) in patients with end-stage chronic liver disease. Its primary application is to determine priority on the liver transplant waiting list, ensuring that available organs are allocated to patients at the highest risk of death. This 3.0 version updates and replaces previous scores, such as the original MELD (based on bilirubin, creatinine, and INR) and MELD-Na (which added serum sodium). The fundamental innovation of MELD 3.0 is the incorporation of two new significant variables:serum albuminand the patient'sbiological sex(adding a factor for females). This update was specifically designed to increase the accuracy of mortality prediction and correct a known systemic bias in previous models, which tended to underestimate disease severity in women. In addition to adding albumin and sex, the MELD 3.0 formula is also more complex, including interaction terms between variables (such as sodium-bilirubin and albumin-creatinine) and adjusting the limits of certain laboratory values, like the creatinine cap, to create a more equitable and precise model.