For ages 12 and older
The Model for End-Stage Liver Disease (MELD) calculator provides a ‘score’ (number) based on how urgently someone needs a liver transplant in the next three months.
For ages 11 and under
The Pediatric End-Stage Liver Disease (PELD) scoring system is similar to MELD, but uses some different factors to recognize the specific needs of children.
The Lung Allocation Score (LAS) is a numerical calculation used for allocating lungs to candidates age 12 and older.