Figure 2. The 7- and 14-day mortality rates in patients with different D-dimer levels at ICU admission. Survival curves of patients with different D-dimer level within 7 and 14 days. D0: D-dimer<1.5μg/mL, D1: 1.5≤D-dimer<10μg/mL, D2: 10≤D-dimer<40μg/mL, D3: D-dimer≥40μg/mL.