Study design and setting
Frailty
SECONDARY, MALNOURISHED
This is a secondary analysis of the Effect of Early Nutritional Support on Frailty, Functional Outcomes, and Recovery of Malnourished Medical Inpatients Trial (EFFORT), a randomized-controlled trial conducted in eight Swiss hospitals between April 2014 and February 2018 [The Ethics Committee of North-western Switzerland (EKNZ; 2014_001) approved the study protocol, and all participants or their authorized representatives provided written informed consent. The study was conducted in accordance with the principles of the Declaration of Helsinki. The trial was registered retrospectivel at ClinicalTrials.gov in August 2015 (