PROS1 and systemic lupus erythematosus: When mean D-Dimer, protein C, protein S, antithrombin, thrombin time, Factor V, Factor VII, Factor VIII, Factor IX, Factor X, Factor XI, Factor XII, plasminogen, Alpha 2 antiplasmin, activated protein C resistance test (APCR), Lupus antibodies (Lupus Ab) and von Willebrand factor antigen (vWF Ag) values were compared, significant differences were observed between Tube Group II and the others, although some comparisons had significant correlations and correspondences (Table 1 and 2).