The following prognostic factors of age (OR = 3.46, p < 0.001), hospitalization duration (OR = 2.73, p < 0.001), ARDS (OR = 2.37, p‐value=0.04), CHA2DS2VASC score (OR = 2.21, p < 0.001), BMI (OR = 1.84, p = 0.002), CURB‐65 score (OR = 1.71, p = 0.06), d‐dimer levels (OR = 1.44, p < 0.001), active cancer (OR = 1.25, p = 0.18), CRP (OR = 1.14, p = 0.038), intubation (OR = 1.12, p = 0.14), and active smoking (OR = 1.00, p = 0.72) were respectively assessed as possible prognostic factors of thromboembolic events. This evidence concerns the gene CRP and cancer.