Table 5 Assessment of the diagnostic performance of an elevated cardiac troponin I to predict a severe cardiac event and/or death

Sensitivity

0.69 (0.51–0.82)

0.62 (0.47–0.74)

0.73 (0.62–0.82)

0.69 (0.61–0.75)

Specificity

0.80 (0.73–0.85)

0.71 (0.64–0.78)

0.67 (0.59–0.74)*

0.73 (0.69–0.77)

Positive predictive value

0.37 (0.26–0.50)

0.38 (0.28–0.49)

0.53 (0.44–0.63)*^†

0.44 (0.38–0.51)

Negative predictive value

0.94 (0.89–0.97)

0.87 (0.80–0.92)

0.83 (0.75–0.88)*

0.88 (0.85–0.91)

Accuracy

0.79 (0.72–0.83)

0.69 (0.63–0.75)*

0.69 (0.63–0.75)*

0.72 (0.68–0.75)