Evaluating Muscle Mass by Using Markers of Kidney Function: Development of the Sarcopenia Index

Sarcopenia is associated with a poor prognosis in the ICU. The purpose of this study was to describe a simple sarcopenia index using routinely available renal biomarkers and evaluate its association with muscle mass and patient outcomes.A retrospective cohort study.A tertiary-care medical center.High-risk adult ICU patients from October 2008 to December 2010.The gold standard for muscle mass was quantified with the paraspinal muscle surface area...