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. Author manuscript; available in PMC: 2017 Aug 16.
Published in final edited form as: J Trauma Acute Care Surg. 2015 Jul;79(1):117–124. doi: 10.1097/TA.0000000000000691

TABLE 6.

Utility of Each Coagulation Test to Predict Substantial Bleeding and Massive Transfusion

AUC (95% Confidence Interval) Sensitivity Specificity PPV NPV
Substantial bleeding
r-TEG R value ≥ 55 0.59 (0.49–0.68) 0.46 0.71 0.07 0.97
r-TEG α angle ≤ 55 0.53 (0.48–0.58) 0.07 0.98 0.17 0.96
r-TEG MA ≤ 55 0.56 (0.47–0.65) 0.32 0.81 0.07 0.96
r-TEG LY30 > 3% 0.51 (0.41–0.57) 0.21 0.77 0.04 0.95
POC INR > 1.5 0.66 (0.56–0.75) 0.43 0.88 0.15 0.97
Massive transfusion
r-TEG R value ≥ 55 0.62 (0.48–0.76) 0.54 0.71 0.04 0.99
r-TEG α angle ≤ 55 0.57 (0.47–0.67) 0.15 0.98 0.17 0.98
r-TEG MA ≤ 55 0.60 (0.46–0.73) 0.38 0.80 0.04 0.98
r-TEG LY30 > 3% 0.58 (0.44–0.72) 0.38 0.78 0.04 0.98
POC INR > 1.5 0.71 (0.56–0.85) 0.54 0.88 0.09 0.99
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