Table 5.

Logistic Regression With the Firth Penalized Likelihood Approach for Initial, Maximum, and Change in Troponin on Acute Myocardial Infarction

Troponin Level	Odds Ratio	95% CI	P Value	AUC	95% CI
Initial troponin	1.074	1.063-1.086	<0.0001	0.8562	0.8454-0.8670
Maximum troponin	1.031	1.028-1.034	<0.0001	0.9401	0.9353-0.9449
Change in troponin (maximum – minimum)	1.031	1.027-1.034	<0.0001	0.8939	0.8848-0.9030

Note: Logistic regression with the Firth penalized likelihood approach was performed to assess the predictive ability of initial, maximum, and the change in troponin level on a primary diagnosis of acute myocardial infarction vs any other diagnosis. The P value for troponin value indicates statistical significance for predicting acute myocardial infarction.

AUC, area under the receiver operating characteristic curve.