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The OPTN waiting list at 2A or 2B status between November, 1999, and December, 2001) is: In interpreting the MELD Score in hospitalized patients, the 3 month observed mortality (considering 3,437 adult liver transplant candidates with chronic liver disease who were added to Patients with a diagnosis of liver cancer will be assigned a MELD score based on how advanced the cancer is. Modification of the MELD score by excluding etiology of liver disease did not significantly affect the model's accuracy in predicting three-month survival.
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The etiology of liver disease was subsequently removed from the model because it posed difficulties such as how to categorize patients with multiple causes of liver disease. if bilirubin is 0.8 a value of 1.0 is used) to prevent subtraction from any of the three factors, since the natural logarithm of a positive number below 1 (greater than 0 and less than 1) yields a negative value. Any value less than one is given a value of 1 (i.e.If the patient has been dialyzed twice within the last 7 days, then the value for serum creatinine used should be 4.0 mg/dL.UNOS has made the following modifications to the score: MELD scores are reported as whole numbers, so the result of the equation above is rounded. It is calculated according to the following formula: MELD = 3.78×ln + 11.2×ln + 9.57×ln + 6.43 MELD uses the patient's values for serum bilirubin, serum creatinine, and the international normalized ratio for prothrombin time (INR) to predict survival. 4 Potential of alternative scores to extend life expectancy.