Data extraction
All data sources were extracted from the hospital’s medical record
management system. Keywords, including ”lymphocyte proliferative
diseases after transplantation” and ”liver transplantation”, were used
to search the database. The collected indicators included: the (1) basic
information: gender, primary disease, age at transplantation, and
weight, among others; (2) laboratory indicators: blood test (WBC, HBG,
NE, PLT), liver and kidney function (ALT, AST, TBIL, DBIL, ALB, AKP,
γ-GGT, CREA, BUN), blood glucose (GLU), coagulation function (PT, INR),
blood lipids (TG, CHOL), and tacrolimus concentration; (3)
transplantation-related indicators: transplantation method, graft
weight, graft/weight ratio, intraoperative blood loss, and blood type;
(4) viral infection: pre-operative EBV and cytomegalovirus (CMV)
infections, time interval between surgery, and the first EBV/CMV
infection; (5) donor information: blood type, pre-operative EBV, and CMV
infection, among others.