Journal of Clinical Pediatrics ›› 2025, Vol. 43 ›› Issue (7): 511-518.doi: 10.12372/jcp.2025.24e0304

• Original Article • Previous Articles     Next Articles

Construction of risk prediction model for primary graft failure after umbilical cord blood transplantation in pediatric leukemia

ZHANG Zhiqi1, XIONG Ruolan1, LI Bohan1, JI Qi1, WANG Qingwei1, LU Jun1, LI Jie1, XIAO Peifang1(), HU Shaoyan1,2()   

  1. 1. Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215000, Jiangsu, China
    2. Jiangsu Pediatric Hematology & Oncology, Suzhou 215000, Jiangsu, China
  • Received:2024-04-09 Accepted:2025-01-26 Published:2025-07-15 Online:2025-06-27
  • Contact: XIAO Peifang, HU Shaoyan E-mail:xpfdr@163.com;hushaoyan@suda.edu.cn

Abstract:

Objective To build a risk prediction model for primary graft failure (PGF) after umbilical cord blood transplantation (UCBT) in pediatric leukemia based on over-sampling. Methods Patients with leukemia who received umbilical cord blood transplantation from January 2017 to December 2022 were retrospectively analyzed. According to the presence or absence of PGF, the patients were divided into graft failure group and graft success group. Based on the over-sampling algorithm to expand the positive group data, the random forest, neural network and logistic regression were used to construct the mode. The stability of the algorithm was evaluated by using the 5-fold cross-validation method. The model was evaluated by using AUC, precision, recall and F1-score. Results A total of 92 leukemia patients were enrolled, PGF occurred in 10 patients (10.9%). ROSE and SMOTE algorithm demonstrate good stability in 5-fold cross-validation method. In the data set processed by ROSE algorithm, all models have good prediction effect, and the best performance is the neural network model. Juvenile myelomonocytic leukemia, HLA matching<9/10, RIC, no Periengraftment syndrome and EBV infection within 42 days were independent risk factors for PGF. Conclusion Multiple factors may cause PGF after umbilical cord blood transplantation in pediatric leukemia. ROSE-Neural Network model has good predictive ability, which can help doctors to identify patients at high risk of PGF early, provide personalized treatment, and improve the prognosis of children.

Key words: leukemia, umbilical cord blood transplantation, primary graft failure, prediction model, child

CLC Number: 

  • R72