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Table 2 Serum D-dimer levels associated with isolated injury

From: Serum D-dimer level as a biomarker for identifying patients with isolated injury to prevent unnecessary whole-body computed tomography in blunt trauma care

Cut-off value of D-dimer (μg/mL) ≤0.5 ≤1.0 ≤2.0 ≤2.5 ≤5.0 ≤10.0 ≤20.0
Sensitivity (%) 3.3 17.0 31.1 35.8 54.2 71.7 86.8
Specificity (%) 100.0 100.0 100.0 100.0 93.0 83.1 66.2
Positive predictive value (%) 100.0 100.0 100.0 100.0 95.1 92.7 88.5
Negative predictive value (%) 25.7 29.0 33.0 34.3 41.1 50.0 63.2
Number of patients with D-dimer ≤ cut-off value, n 7 36 66 76 120 164 207
Proportion of patients with D-dimer ≤ cut-off value, % 2.5 12.7 23.3 26.9 42.4 58.0 73.1