Nomogram model of mortality risk in patients with chronic obstructive pulmonary disease in intensive care unit: based on MIMIC-IV database and external validation study.

Front Med (Lausanne) · 2025 · PMC12322971 · PMID 40766059

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may be significantno p-value reported

In patient populations aspects, there may be significant demographic differences between the two databases, such as age, gender, and racial distribution.

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