Specifically, multivariable analysis showed that for every 1-fold increase in hs-cTnT levels, the risk of all-cause mortality in DM patients increased by 2.78 times (adjusted hazard ratio: 2.78, 95% CI: 1.62–4.76), highlighting the importance of diabetes status in evaluating the prognosis of ACS patients after PCI. This evidence concerns the gene TNNT2 and diabetes mellitus.