In order to avoid omission of potentially important factors, 16 variables with P<0.1 in the modeling set (age, tumor number, LEU, urine leukocytes (quantitative), BLD, A/G, globulin, hemoglobin, PLT, erythrocytes, RDW, prothrombin time, activated partial thromboplastin, alanine aminotransferase, AST/ALT, albumin) were screened by Lasso regression (Figure 2). The gene discussed is F2; the disease is neoplasm.