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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: Prolonged viral shedding of SARS-CoV-2 and related factors in symptomatic COVID-19 patients: a prospective study

Fig. 2

The time of SARS-CoV-2 RNA negativity in relation with demographic information among hospitalized COVID-19 patients. A The length of time to RT-PCR negativity compared between groups of patients based on Wilcoxon ranks sum test, asterisks represent significant differences between groups (P < 0.05). Dots and error bars denote medians and interquartile ranges, respectively (Left column). The hazard ratio (HR) and 95% confidence interval (CI) were displayed for the Cox regression model based on N, ORF gene and death outcome, the dots are the HRs and the error bars are the 95%CIs. The red color represents P < 0.05 and the blue color represents P ≥ 0.05. The dotted line indicates an OR of 1 (Middle and right column); B Kaplan–Meier curves compared by log-rank test on probability of RT-qPCR negativity according to age; C Kaplan–Meier curves compared by log-rank test on probability of RT-qPCR negativity according to the delay from symptom onset to hospital admission

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