IL6 and endothelial dysfunction: TNF-α significantly improved the predictive ability of the model, with a hazard ratio (HR) of 2.5 (95% CI: 1.11–6.34; p = 0.01) for MACE in patients with TNF-α ≥ 5.19 pg/mL, even after adjusting for endothelial dysfunction and IL-6.