TNNI3 and myocardial infarction: Notably, while hs-cTnI is the gold standard for MI diagnosis, our findings suggest that ox-LDL (AUC = 83.22, > 63.35 μg/L) and EF% (AUC = 82.35, < 46.25%) outperform hs-cTnI (AUC = 81.3, > 0.265 ng/ml) in diagnosing CAB > 50%.