VTE-free survival. Shown are the VTE-free survival rates in initially nonthrombotic women with pregnancy loss (3 unexplained consecutive spontaneous abortions before the 10th week or 1 unexplained fetal death at or beyond the 10th week) with positive aPLAbs, with a positive F5 6025 or F2 rs1799963 polymorphism (constitutional thrombophilia), or with a negative thrombophilia screening (negative).