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Table 4 Cutoff values, sensitivity, specificity, and predictive values of D-dimer

From: Plasma D-dimer is not useful in the prediction of deep vein thrombosis after total knee arthroplasty in patients using rivaroxaban for thromboprophylaxis

D-dimer test Best cutoff value (mg/L) Sensitivity (%) Specificity (%) Positive (%) Negative (%) AUC (%) p value
     Predictive value   
Post-op 4 h 11.2 44.8 69.6 20.0 88.1 54.7 0.42
Post-op 1 day 8.2 51.7 64.9 20.0 88.8 58.0 0.17
Post-op 4 days 3.8 58.6 76.0 29.3 91.5 63.5 0.02
  1. AUC area under curve