• Lin Qi, Yong Yang, Dixuan Jiang, Chao Tu, Lu Wan, Xiangyu Chen, and Zhihong Li.
• Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha 410011, China; Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Changsha 410011, China.
• Int. J. Infect. Dis. 2020 Jul 1; 96: 531-537.

ObjectivesTo investigate factors associated with the duration of viral shedding in patients with COVID-19, outside of Wuhan.MethodsIn this retrospective cohort study, patients with laboratory-confirmed COVID-19 in Changsha, China were included. Clinical characteristics, laboratory findings, treatment, and outcome were retrieved. Univariate and multivariate analyses were performed to explore potential factors.ResultsOverall, 147 patients with COVID-19 were included. The median duration of viral shedding (the number of days from symptoms onset until the successive negative detection of SARS-CoV-2 RNA) was 17 days (interquartile range [IQR], 12-21). Multivariate Logistic regression analysis indicated that the highest temperature at admission (odds ratio [OR], 5.200; 95% confidence interval [CI]: 1.190-22.726; p = 0.028), time from symptom onset to admission (OR, 1.740; 95% CI: 1.296-2.337; p < 0.001) and hospital length of stay (OR, 1.604; 95% CI: 1.262-2.040; p < 0.001) were risk factors for prolonged duration of viral shedding.ConclusionsThis study, with a relatively large sample size, focused on the duration of viral shedding and related factors in patients with COVID-19, outside of Wuhan, China. Potential risk factors were identified and should be taken into consideration for the strategy of quarantining infected patients.Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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