Inadequate energy and protein intake, underweight and malnutrition are associated with in‐hospital mortality among COVID ‐19 rehabilitation patients during the omicron outbreak in Hong Kong

We observed a high malnutrition risk of 94.9% in COVID-19 patients. Patients with malnutrition risk had a lower BMI, lower nutritional intake, and a higher chance of in-hospital death. These results reinforced the importance of nutrition management in COVID-19 patients.