Elevated blood urea nitrogen-to-creatinine ratio predicts short-term mortality in intensive care unit patients with ischemic stroke: Evidence from a multicenter cohort.

An increasing trend in age was observed across the BUCR categories (63.52 ± 14.42 vs. 68.70 ± 14.15 vs. 73.48 ± 12.48 years; P < 0.001), along with a progressively greater proportion of male patients (38.56% vs. 42.54% vs. 62.35%; P < 0.001).

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