Association between inpatient glycemic variability and COVID-19 mortality: a prospective study.

"Declarations Ethics approval and consent to participateThe study protocol was approved by the Marcelino Champagnat hospital's research ethics committee (Center for Teaching, Research, and Innovation [CEPI]) on March 20, 2020, and was registered at Plataforma Brasil (CAAE 30188020.7.1001.0020). All patients or their legally authorized representatives signed consent forms before the start of the study. The study was conducted in accordance with the principles of the Declaration of Helsinki. Consent for publicationNot applicable. Competing interestsI declare that the authors have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper. Competing interests I declare that the authors have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper."

"Funding This study was financially supported by Regional Development Bank of the Extreme South (BRDE). However, it is important to note that this funding organization has no influence on the design, data analysis, or composition of this article."

"The study protocol was approved by the hospital's research ethics committee (Center for Teaching, Research, and Innovation [CEPI]) on March 20, 2020, and was registered at Plataforma Brasil (CAAE 30188020.7.1001.0020). All patients or their legally authorized representatives signed consent forms before the start of the study. The study was conducted in accordance with the principles of the Declaration of Helsinki. Declarations: Ethics approval and consent to participateThe study protocol was approved by the Marcelino Champagnat hospital's research ethics committee (Center for Teaching, Research, and Innovation [CEPI]) on March 20, 2020, and was registered at Plataforma Brasil (CAAE 30188020.7.1001.0020). All patients or their legally authorized representatives signed consent forms before the start of the study. The study was conducted in accordance with the principles of the Declaration of Helsinki.: Consent for publicationNot applicable.: Competing interestsI declare that the authors have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper. Ethics approval and consent to participate: The study protocol was approved by the Marcelino Champagnat hospital's research ethics committee (Center for Teaching, Research, and Innovation [CEPI]) on March 20, 2020, and was registered at Plataforma Brasil (CAAE 30188020.7.1001.0020). All patients or their legally authorized representatives signed consent forms before the start of the study. The study was conducted in accordance with the principles of the Declaration of Helsinki."