“…COC-induced hemostatic changes involve levels of fibrinogen, prothrombin, factors VII, VIII, IX, X, XII, antithrombin, protein C, protein S, and tissue factor pathway inhibitor (TFPI). 40,41,45,46,[101][102][103][104][105][106][107] Markers of activation of the coagulation process, such as prothrombin fragment 1 þ 2 (F1 þ 2), D-dimer, fibrin monomers, or thrombin-antithrombin complex, are also frequently increased, showing a trend toward a prothrombotic state. 40,41,45,46,88,[100][101][102][103][104][105][106][107] These changes also involve factors from the fibrinolysis pathway.…”