April 1, 2026Open Access
Association of malnutrition with in-hospital outcomes among patients hospitalized with dermatomyositis or polymyositis
Key Points
- The study aims to investigate the impact of malnutrition on hospital outcomes in patients with dermatomyositis (DM) and polymyositis (PM).
- Analysis of hospital admissions from 2016 to 2022 using National Inpatient Sample (NIS) data.
- Identification of malnutrition incidence in DM/PM hospitalizations.
- Examination of associations between malnutrition and in-hospital outcomes.
- Malnutrition was present in 12.9% of DM/PM admissions.
- Higher odds of in-hospital mortality were linked to malnutrition.
- Malnutrition was correlated with an increase in major complications and healthcare resource utilization.
Abstract
In DM/PM hospitalizations, malnutrition was associated with higher odds of major complications and greater healthcare resource utilization. These findings suggest that inpatient nutritional risk assessment may help inform risk stratification during hospitalization for DM/PM. Key Points • In DM/PM hospitalizations, malnutrition occurred in 12.9% of admissions (NIS 2016-2022). • In matched DM/PM analyses, malnutrition was associated with higher in-hospital mortality and major complications. • Malnutrition was associated with greater resource utilization in DM/PM admissions.