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Kaplan–Meier curves for cumulative 30-day mortality according to different venous thromboembolism risk. (A) Comparison of cumulative mortality rates between Padua prediction score <4 and ≥4 subgroups, P < 0.001. (B) Comparison of cumulative mortality rates between International Medical Prevention Registry score 0–1, 2–3, and ≥4 subgroups, P < 0.001. (C) Comparison of cumulative mortality rates between Caprini score 0–4 and ≥5 subgroups, P < 0.001.
