Table 4.

The summary of diagnostic accuracies (sensitivity, specificity, positive predictive value and negative predictive value) with 95% confidence interval of lesion scores for the prediction of acute coronary syndrome at various cutpoints.

	Sensitivity	Specificity	PPV	NPV
Score A
≥ 1	71% [48–89]	69% [29–91]	79% [54–94]	60% [32–84]
= 2	38% [18–62]	92% [64–100]	89% [52–100]	48% [25–69]
Score B
≥ 1	86% [64–97]	62% [32–86]	78% [56–96]	73% [39–94]
≥ 2	57% [34–78]	92% [64–100]	92% [64–100]	57% [34–78]
= 3	29% [11–52]	100% [75–100]	100% [54–100]	46% [28–66]
Score C
≥ 1	86% [64–97]	54% [25–81]	75% [53–90]	70% [35–93]
≥ 2	71% [48–89]	85% [55–98]	88% [64–99]	65% [38–86]
≥ 3	48% [26–70]	100% [75–100]	100% [69–100]	54% [33–74]
= 4	24% [8–47]	100% [75–100]	100% [48–100]	45% [26–64]

NPV – negative predictive value

PPV – positive predictive value