Table 1.

The comparison of incubation periods with previous studies.

	Number of cases and place of infection	Median age (range, years)	Fitted distribution	Median incubation period (days)	Range or 95% CI of the incubation period (days)
Our study	47 from Busan, Korea	30 (17–83)	Log-normal distribution	3.0	95% CI: 0.6–8.2
Ki M et al. [11]	Seven including imported cases in Korea	N/A	N/A	4.0	Range: 1-9
Li Q et al. [12].	10 from Wuhan, China	42 (21–62)	Gamma distribution	5.2	95% CI: 4.1–7.0
Linton NM et al. [13].	52 from China	N/A (30–59)	Log-normal distribution	5.6	95% CI: 4.4–7.4
Backer JA et al. [14]	88 travellers from Wuhan, China	N/A (2–72)	Weibull distribution	6.4	Range: 2.1–11.1

N/A: Not available.

CI: confidence interval.