did not reach statistical significancep = 0.06175
EuroSCORE II demonstrated a trend toward better discriminative performance in octogenarians (AUC 0.831; 95% CI: 0.6964–0.9656) compared to patients aged 65–79 years (AUC 0.6432; 95% CI: 0.5825–0.8095), though this did not reach statistical significance (p = 0.06175).