did not reach statistical significanceP = 0.1864
In patients with impaired renal function, elevated troponin conferred a 3.63-fold increase in adjusted 1-year mortality risk (aHR: 3.63; 95% CI: 2.04–6.49, P < 0.001), while in those with preserved renal function, this association was attenuated and did not reach statistical significance (aHR: 1.40; 95% CI: 0.85–2.29, P = 0.1864; P for interaction = 0.0089).