Abstract: ［Abstract］〓Objective〖HTSS〗〓To investigate the nutritional risk and malnutrition of hospitalized children with blood tumor and analyze its effect factors, providing evidence for the clinical nutritional risk screening program and the reasonable assessment of nutritional status.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Based on the collected data of 350 hospitalized children with blood tumor, Chinese Version Paediatric Yorkhill Malnutrition Score(CVPYMS) was employed to analyze the present situation and effect factors of nutritional risk and malnutrition in hospitalized children with blood tumor.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓69(19.72%) of the 350 hospitalized children's nutritional risk was high, 249(71.14%) was moderateand 32(9.14%) was low. According to the malnutrition classification criteria in Chinese Guidelines for Clinical Application of Paediatric Parenteral Nutrition Support, the malnutritiondetection rate was 5.71%, among which 18(5.14%) were moderately malnourished, and 2(0.57%) were severe malnutrition. Logistic regression analysis indicated that age, chemotherapy period and tumor stage were the independent risk factors affecting themalnutrition risk among hospitalized children with blood tumor.
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓The incidence of malnutrition among hospitalized children with blood tumor is high; age, chemotherapy period and tumor stage are the critical factors affecting themalnutrition risk among hospitalized children with blood tumor.

Key words: hematologic neoplasms, malnutrition, root cause analysis