SERPINE1 and deep vein thrombosis: Regarding the PAI-1 plus NLR score, the cumulative incidence of thrombosis by was 0%, 7% (95% CI: 2–17%), and 44% (95% CI: 12–77%) for the for the low, intermediate, and high-risk group, respectively (HR: 8.3, CI: 95%: 1.6–43; p = 0.011).