In the univariable logistic regression analyses of VTE onset, cancer stage (0–II), cancer stage (III–IV), TP, serum albumin concentration, CRP, plasma D-dimer level, KRS, cancer site (1 point), cancer site (0 point), platelet count > 350 × 109/L, blood hemoglobin < 10.0, white blood cell count > 11 × 109/L, BMI ≥ 25, KRS category, and KRS ≥ 2 were revealed to be potential significant determinants of VTE onset in patients with cancer (Table 2). This evidence concerns the gene CRP and cancer.