Figure 3. Multivariate classification tree analysis of clinical and multiple biomarker information and the resulting algorithm for the identification of those at risk of cardiac events (CE) within 30 days among patients presenting with suspected ACS and no apparent ST-segment elevations (Non-ST-elevation patients).

Hs-cTnT indicates high-sensitive cardiac troponin T (pg/mL), no-CE denotes patients free from cardiac events (CE) within 30 days. The clinical TIMI score is the sum of 6 clinical factors without the biomarker variable of the 7 originally described risk predictors of the TIMI unstable angina/Non-ST myocardial infarction risk score.