Clinical prognostic impact of C-NLR in heart failure patients with different ejection fractions: a retrospective study.

"Declarations Ethics approval and consent to participateThe study protocol was approved by the Medical Ethics Committee of the First Affiliated Hospital of Kunming Medical University and was in line with the guidelines of the World Medical Association Declaration of Helsinki. All patients gave written informed consent for their data to be electronically stored and used for research. The ethics number of the study was (2022) Ethics L No.173. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding The investigation was subsidized by the Yunnan Provincial Health Commission Clinical Medical Center (ZX2019-03-01), the Yunnan Province Clinical Research Center for Kidney Diseases (202102AA100060) and the Applied Basic Research Program of the Science and Technology Hall of Yunnan Province and Kunming Medical University (Project No. 202301AY070001–130)."