Glossary Term

Standard Error

The standard error measures the level of precision associated with an estimate for a population, usually the mean. Categories that include a large number of transplants generally have small standard errors, while categories with relatively few transplants generally have large standard errors. Survival rates associated with a smaller standard error are more precise than those associated with a larger standard error. Standard errors are presented in the graft and patient survival rates tables. (OPTN Glossary May 2021)