This study is a multi-center observational study.Patients in the geriatrics department from September 2020 to September 2021 are consecutively enrolled .The patients' basic information, nutritional assessment, diet and blood biochemical indicators after hospitalization will be registered.The status of nutritional treatment and rehabilitation training and whether there is any adverse outcome when discharged from the hospital will be recorded. Daily energy, protein and fiber are 75% of the target amount as the standard for feeding.The diet, exercise status and adverse outcomes of participants within 90 days after hospitalization will be followed up through outpatient, telephone or remote consultation.Primary endpoint-the impact of nutritional therapy (energy, protein, dietary fiber compliance or failure) on mortality, new infections, falls and readmissions in elderly hospitalized patients within 90 days after hospitalization; secondary endpoints-the change of the nutrition indicators, the physical function and quality of life of the participants within 90 days after hospitalization.
This study is a multi-center observational study, led by the Department of Geriatrics, Peking Union Medical College Hospital, with 99 tertiary hospitals as sub-centers. Patients in the geriatrics department from September 2020 to September 2021 are consecutively enrolled .Basic information and nutritional risk assessment is registered and the outcome within 90 days after hospitalization will be recorded.Daily energy, protein and fiber are 75% of the target amount as the standard for feeding.