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Table 1 Schematic outcomes of a test

From: Silent coronary artery disease in type 2 diabetes mellitus: the role of Lipoprotein(a), homocysteine and apo(a) polymorphism

TEST

CAD

n

NO CAD

n

Positive

True positive

a

False positive

c

Negative

False negative

b

True negative

d

  1. Sensitivity = a / (a+b); specificity = d / (c+d); positive predictive value = a / (a+c) Negative predictive value = d / (b+d)
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Cardiovascular Diabetology

ISSN: 1475-2840