Association between stress hyperglycemia ratio and all-cause mortality in critically ill patients with atrial fibrillation: insights from a MIMIC-IV study.

When divided by quartiles of SHR and taking Q1 as the reference, the risk was significantly lower in Q2 (HR=0.74; 95%CI: 0.58-0.95; P = 0.019), not significantly different in Q3 (HR=0.98; 95CI: 0.78-1.24; P = 0.885), and significantly higher in Q4 (HR=1.36; 95%CI: 1.09-1.68; P = 0.006), demonstrating a significant trend across the quartiles (P for trend < 0.001).

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