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Association between blood urea nitrogen to serum albumin ratio and in-hospital mortality of patients with chronic obstructive pulmonary disease in the intensive care unit: a retrospective cohort study

Crossref DOI link: https://doi.org/10.1186/s43168-025-00398-y

Published Online: 2025-04-28

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Ren, Rui

Shi, Yushan

Zhang, Yanmei
Funding

Funding for this research was provided by:

Natural Science Foundation of Shandong Province (ZR2019PH066)

Medical and Health Science and Technology Development Project of Shandong Province (202403030330)
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Text and Data Mining valid from 2025-04-28

Version of Record valid from 2025-04-28
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Article History

Received: 23 November 2024

Accepted: 17 April 2025

First Online: 28 April 2025

Declarations

:

: Informed consent was not applicable because anonymized patient data were extracted from public databases. Our study was approved by the Ethics Committee of the Affiliated Hospital of Shandong University of Traditional Chinese Medicine (ethics number: 2023–0025).

: Not applicable.

: The authors declare no competing interests.

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