Table 1.

Distribution of confirmed cases by age, gender, source of infection, and extent of household infection (N = 416)

Variable	All confirmed cases		Returnees		Nonreturnees
	N	Percentage	n	Percentage	n	Percentage
Age
0-18	21	5.05	7	3.54	14	6.42
19-59	328	78.84	173	87.37	155	71.10
60 or older	67	16.11	18	9.10	49	22.48
Gender
Male	236	56.73	123	62.12	113	51.83
Female	180	43.27	75	37.88	105	48.17
Source of infection
Hubei exposure	213	51.20
Confirmed case contact	108	25.96
Non-Hubei returnee	32	7.69
Other	63	15.14

Household clusters
Number of cases per household		Number of households	Percentage
	2	33	64.71
	3	13	25.49
	4	2	3.92
	5	1	1.96
	6	2	3.92
Total	130	51