In-hospital adverse outcomes and risk factors among chronic kidney disease patients infected with the omicron variant of SARS-CoV-2: a single-center retrospective study
Yue Guo, Yifei Guo, Huajian Ying, Weien Yu, Shiqi Chen, Yao Zhang, Shenyan Zhang, Yanxue Lin, Feng Sun, Yongmei Zhang, Jie Yu, Ke Ma, Lunxiu Qin, Feng Long, Haoxiang Zhu, Richeng Mao, Jun Xue, Jiming Zhang
BMC Infectious Diseases, doi:10.1186/s12879-023-08620-2
Introduction The SARS-CoV-2 Omicron variant has decreased virulence and pathogenicity, yet the number of Omicron infections worldwide is unprecedentedly high, with rather high mortality and severe disease rate. Chronic kidney disease (CKD) patients are particularly vulnerable to the SARS-CoV-2 Omicron variant and have unique clinical outcomes.
Methods We retrospectively collected data from 2140 hospitalized patients with SARS-CoV-2 Omicron variant infection from March 29, 2022, to May 17, 2022. Demographic characteristics, ancillary examination results, and clinical treatments were described. Occurrence of critical COVID-19 or death and time of positive-to-negative conversion was defined as primary outcomes. The presence of COVID-19 pneumonia and the usage of respiratory or circulatory support was defined as secondary outcomes. Univariate or multivariate logistic regression analyses were performed to identify risk factors for primary outcomes. Results 15.74% of CKD patients infected with the SARS-CoV-2 Omicron variant ended up with critical COVID-19 or death. Pre-existing CKD was a risk factor for critical COVID-19 or death and prolonged time of positive-to-negative conversion of SARS-CoV-2. Nirmatrelvir-ritonavir facilitated viral clearance among COVID-19 patients with non-severe CKD.
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Supplementary Information The online version contains supplementary material available at https://doi. org/10.1186/s12879-023-08620-2.
Supplementary Material 1
Authors' contributions
Declarations Ethics approval and consent to participate Ethical approval was obtained from the Ethics Review Board of the Huashan Hospital, Fudan University (ethics approval registration number: KY2022-582). Informed consent forms were signed by each patient.All methods were carried out in accordance with relevant guidelines and regulations.
Consent for publication Not applicable.
Competing interests The authors declare no competing interests.
Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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