[Weight loss and malnutrition risk in geriatric patients].

Background: Malnutrition is a major challenge in routine clinical practice and is associated with increased mortality.

Objectives: In the research project Prevention and treatment of malnutrition in geriatric patients in hospital funded by the Federal Ministry of Education and Research (BMBF), routine data were analyzed. The aim was to uncover the causes of malnutrition risks acquired in hospital.

Material And Methods: Anonymized data from nursing home residents with at least a 3-day hospital stay were analyzed. The study included a total of 2058 residents from 19 nursing homes. The malnutrition risk was assessed by the combined MUST/PEMU (Malnutrition Universal Screening Tool/Nursing Measurement of Malnutrition and its Causes) screening and malnutrition by ESPEN (European Society for Clinical Nutrition and Metabolism) criteria.

Results: Of the residents 36.2% (n = 744) had an initial risk of malnutrition and 12.7% (n = 262) were already malnourished. The proportions increased to 48.6% (n = 881) and 14.3% (n = 259) at discharge, respectively. The logistic regression analysis showed a significantly increasing probability of developing a malnutrition risk during the hospital stay with the diagnoses diseases of the respiratory system (OR 2.686; CI 95 1.111-4.575), chondropathy and osteopathy (OR 1.892; CI 95 1.149-3.115) and a higher BMI (OR 0.108; CI 95 1.038-1.181), more positive weight changes 6 months before hospital (OR 1.055; CI 95 1.017-1.094) and an increasing hospital stay (OR 1.048; CI 95 1.029-1.067).

Conclusion: The identification of an initial malnutrition and the prevention of developing a malnutrition risk represent major challenges in clinical practise. Both are equally necessary.