Table 2.

 2×2 tables comparing high sensitivity cardiac troponin assay (sex specific thresholds) with contemporary assay for diagnosis of type 1 myocardial infarction in men and women*

		Contemporary assay (single threshold)
		Negative	Positive	Total
High sensitivity assay (sex specific threshold)	Women:
	Negative	Group 1: 337	Group 4: 0	337
	Positive	Group 2: 56	Group 3: 55	111
	Total	393	55	448
	Men:
	Negative	Group 1: 451	Group 4: 0	451
	Positive	Group 2: 14	Group 3: 117	131
	Total	465	117	582

*Patients were stratified into groups using both assays: those with no myocardial infarction (group 1) and myocardial infarction (group 3) where the assays were concordant and for those reclassified as having myocardial infarction using the high sensitivity assay with sex specific thresholds (group 2). There were no patients in whom troponin concentrations were below the threshold of the high sensitivity assay, but were above the threshold on the contemporary assay (group 4).