Table 2.

Analysis of high-risk factors for COVID-19 incidence in COFs.

		Secondary patients (n = 59)	Non-infected members(n = 36)	P value
Place of new-onset patient's onset	Hospital	6	8	0.11
	Community	53	28
Disease severity in the new-onset patient	Light or Normal	11	7	0.94
	Heavy	31	18
	Critical	17	11
Exposure pathway	Respiratory droplets	7	24	0.00
	Respiratory droplets + Close contact	52	12
Age of exposed person		54.9 ± 16.7	36.3 ± 20.8	0.00
Comorbidity	Yes	20	2	0.00
	No	39	34