Single-pool model urea clearance index is associated with sarcopenia and nutritional status in patients undergoing maintenance hemodialysis: a cross-sectional study.

"Declarations Ethics approval and consent to participateThe study protocol was approved by the Institutional Review Board at the Guangzhou Red Cross Hospital of Jinan University [No. 2023-040-01], and written informed consent was obtained from all participants. This study adhered to the tenets of the Declaration of Helsinki and the Guidance on Sample Collection of Human Genetic Diseases by the Ministry of Public Health of China and does not contain any studies with animals performed by any of the authors. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by the Guangzhou Science and Technology Project (202201020033), and Research-oriented Hospital Program of Guangzhou (2022RHPG05)."