The Association Between Nutritional Status and Outcomes in Patients Infected With COVID-19

ABSTRACT

Background: The COVID-19 pandemic continues to pose challenges for healthcare systems across the world. Many patients infected with the virus, whether mild or severe, have nutritional complications ranging from poor appetite to the need for nutrition support. Limited research has shown that nutritional status plays a significant role in disease outcomes for COVID-19 patients. Although the American Society for Parenteral and Enteral Nutrition set guidelines for the nutritional management of COVID-19 patients, to date there are few major studies investigating the association between nutritional risk and outcomes in these patients. Thus, the purpose of this study is to assess the association between nutritional status and outcomes in hospitalized patients with COVID-19 and to identify the most common feeding practices among these patients. Method(s) A descriptive research design was used. Researchers reviewed the medical records of a random sample of 300 adult patients diagnosed with COVID-19 admitted to an academic metropolitan healthcare system between March 2020 to March 2021. Nutritional status was obtained from the admission screening and assessment documentation by a clinical dietitian (RD). Patients were then stratified based on admission nutritional status as malnourished or not. Differences in hospital length of stay (LOS), ICU LOS, ventilator dependence (in hours), and mortality were compared between groups using Mann-Whitney U, independent t-test, and chi-square tests. Result(s) Malnourished patients had a longer median (IQR) length of stay compared to non-malnourished patients (8 days (3,16) vs 4 days (3,8), p = 0.001). More patients who were malnourished expired (10/43, 23.3%) compared to patients who were not malnourished (17/ 257, 6.6%) (p = 0.002). No significant differences were observed in ICU length of stay or hours on a ventilator between groups. Most patients in the study were fed orally (87.3%), while 12.7% were fed enterally, and none of the patients were fed through use of parenteral nutrition. Conclusion(s) Results suggest that malnourished patients with COVID-19 experienced several worse outcomes compared to patients with COVID-19 who were not malnourished during hospitalization. Other known factors that influence outcomes of patients with COVID-19 were not considered in this descriptive study. Subsequent analysis to account for race, obesity, and other comorbidities is needed.