Table 2.
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).