Von Willebrand Factor Antigen Predicts Response to Double Dose of Aspirin and Clopidogrel by PFA-100 in Patients Undergoing Primary Angioplasty for St Elevation Myocardial Infarction

Table 4

Negative predictive value of CEPI-CT > 190 sec for VWF > 75° percentile.

	CEPI-CT < 190 sec	CEPI-CT > 190 sec
VWF < 75°	46	38
VWF ≥ 75°	25	7

Negative predictive value: 38/45 = 84.5%.