Recent and current low food intake - prevalence and associated factors in hospital patients from different medical specialities

Abstract

Background/objectives: Poor food intake is a major etiological factor of malnutrition. This research aims to describe the prevalence of recent and current low food intake (LI_RC) and to identify factors associated with LI_RC in adult hospital patients from different medical specialities.

Subject/methods: 1865 patients participating in the nutritionDay survey 2016-2020 in Germany were included. LI_RC was defined by decreased eating both on nutritionDay and in the week before hospitalisation. Multivariate binary logistic regression was used to identify factors associated with LI_RC overall and in different specialities.

Results: LI_RC was observed in 21.1% of all patients, with the highest prevalence in Gastroenterology (26.6%) and the lowest in Neurology (11.2%). Weight loss within three months before nutritionDay (OR 2.62 [95% CI 1.93-3.56]), (very) poor self-rated health (2.17 [1.62-2.91]), female sex (1.98 [1.50-2.61]), uncertain weight loss (1.90 [1.03-3.51]), digestive disease (1.90 [1.40-2.56]), inability to walk without assistance (1.55 [1.14-2.12]) and emergency admission (1.38 [1.02-1.86]) were associated with increased risk, cardiac insufficiency (0.55 [0.37-0.83]) and being in a neurological ward (0.51 [0.28-0.92]) with decreased risk in the total sample. In Gastroenterology and Oncology, estimates were higher than in the entire sample; no significant associations were found in Neurology and Geriatrics, presumably due to the low prevalence of LI_RC in Neurology and limited data quality in Geriatrics.

Conclusion: LI_RC is common in German hospital patients and associated with female sex, poor health and decreased functional status. Interdisciplinary differences suggest a discipline-specific approach to dealing with malnutrition.