Table 5. Main durations of COVID-19.

Duration	All patients		Supplemental				P value
			Oxygen not required		Oxygen required
	Median (IQR)	No. of patients	Median (IQR)	No. of patients	Median (IQR)	No. of patients
Incubation period,a day	5 (4–6)	25	5 (4–6)	22	6 (4–9)	3	0.643
Symptom onset to admission,b day	5 (2–8)	31	5 (2–8)	26	6 (5–9)	5	0.333
Duration of viral shedding,c day	21 (14–28)	36	20 (13–27)	31	22 (21–29)	5	0.507
Duration of hospital stay,d day	22 (16–27)	-	21 (16–24)	-	28 (20–32)	-	0.029

COVID-19 = coronavirus disease 2019, IQR = interquartile range, RT-PCR = reverse transcription-polymerase chain reaction.

^aTwo asymptomatic patients and 13 symptomatic patients without the exact date of exposure to SARS-CoV-2 or symptom onset known were excluded; ^bTwo asymptomatic patients, five presymptomatic patients, and two symptomatic patients without the exact date of symptom onset known were excluded; ^cDuration was calculated by subtracting the date of symptom onset from the median of the date of the last positive real-time RT-PCR test result and the date of the first negative real-time RT-PCR test result. Two asymptomatic patients and two symptomatic patients without the exact date of symptom onset known were excluded; ^dDuration was calculated by subtracting the day of admission from the day of discharge.