Abstract: Objective To systematically evaluate the effects of volume based and rate based feeding on the nutrition intake of intensive care patients. Methods Cochrane Library,PubMed,Web of Science,CNKI,Wanfang Database,China Biomedical Database and VIP were searched for randomized controlled trials and quasi-experimental studies related to the effects of volume-based and rate-based feeding on compliance rate of nutrition in critically ill patients from the database's inception to August 2022. After literature screening,data extraction and the risk of bias were evaluated independently by two researchers,meta-analysis was performed using RevMan 5.3 software. Results A total of 5 randomized controlled trials and 4 quasi-experimental studies were included,including 718 patients. Meta-analysis showed that compared with rate-based feeding,volume-based feeding scheme can improve the compliance rate of energy intake[MD=16.58,95%CI（11.15,20.01）,P<0.001] and protein intake compliance rate in intensive care patients,but the differences in the incidence of diarrhea[OR=1.07,95%CI（0.72,1.58）,P=0.75],the inci-dence of vomiting/reflux[OR=0.77,95%CI（0.48,1.26）,P=0.30],ICU hospitalization length[MD=-0.11,95%CI（-0.15,0.94）,P=0.84] and other aspects were not statistically significant between the two groups. Conclusion Compared with the traditional enteral nutrition scheme,volume based feeding could significantly improve the nutritional intake of critical patients,but did not increase the incidence of complications of enteral feeding,and could effectively ensure the nutritional supply of patients.

Key words: Enteral Nutrition, Nutritional Support, Critical Care Nursing, Meta-Analysis as Topic