Table 1.

Sensitivity and Specificity

database	annotated beats N	true TP	false negative FN	false positive FP	shifted SH
AHA	328471	324739	1411	1376	945
	Se = 99.28 %		Sp = 99.58%
MIT-BIH	213543	210080	1570	648	1245
	Se = 98.68 %		Sp = 99.69%
AHA&MIT-BIH	542014	534819	2981	2024	2190
	Se = 99.04 %		Sp = 99.62%