Nutritional status in patients aged over 65 years and its influence on the quantity and type of complications occurring 3, 6 and 12 months after hospitalisation: a clinical prospective study.

Abnormal nutritional status was a common phenomenon in the group of patients under investigation. The set of criteria for assessing the nutritional status that had the highest association with the duration of hospitalisation and the incidence of complications includes laboratory tests and ESPEN criteria comprising the value of FFMI.