The risk factors associated with VTE incidence at baseline were female sex, older age (≥65 y), cancer stage IV, lymph node metastasis, distant metastasis, ECOG PS of 1 and 2, history of VTE, bed rest for 4 days or more, D-dimer greater than 1.2 μg/mL, Hb less than 10 g/dL, WBC count greater than 11 × 109/L, and creatinine clearance less than or equal to 50 mL/min. Here, GSTM1 is linked to cancer.