Assessment of refeeding syndrome definitions and 30-day mortality in critically ill adults: A comparison study.

Background: Patients in the intensive care unit (ICU) are at high risk for refeeding syndrome (RFS), yet there is uncertainty regarding how RFS should be operationalized in the ICU. We evaluated different definitions for RFS and tested how they associated with patient-centered outcomes in the ICU.

Methods: This was a retrospective comparison study.