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. 2020 Oct 13;20:749. doi: 10.1186/s12879-020-05463-z

Table 2.

Characteristics of 59 patients who recovered from COVID-19 and had recurrent positive RT-PCR results

Positive RT-PCR Results
From disease onset From diagnosis From hospital discharge
First time Last time Last time Last time
Median (IQR) 1 (−2–7) 30 (23–39) 24 (20–29) 8 (4–11)
Minimum to maximum −35 14–61 13–48 1/19/2020
Mean ± SD 4.153 ± 7.701 31.78 ± 12.17 25.53 ± 7.857 7.746 ± 4.13
95% CI of the mean 2.146–6.159 28.61–34.95 23.48–27.54 6.67–8.822
Last (weeks) ≥1 week (n) / / / 23
≥2 weeks (n) / / 1 33
≥3 weeks (n) / 11 15 3
≥4 weeks (n) / 15 25 /
≥5 weeks (n) / 9 12 /
≥6 weeks (n) / 15 5 /
≥7 weeks (n) / 3 3 /
≥8 weeks (n) / 2 / /
≥9 weeks (n) / 4 / /

Abbreviations: IQR interquartile range