Table 2.

Presence or absence of SARS-CoV-2 IgG antibodies according to risk group and exposure to confirmed COVID-19 patients

	Absence of SARS-CoV-2 IgG antibodies N (%)	Presence of SARS-CoV-2 IgG antibodies N (%)
Risk group
Low risk	1091 (95.6)	50 (4.4)
Intermediate risk	812 (92.6)	65 (7.4)
High risk	561 (87.1)	83 (12.9)
Exposure to confirmed cases in the hospital
No	1187 (96.0)	49 (4.0)
Yes with PPE	900 (90.4)	96 (9.6)
Yes without PPE	377 (87.7)	53 (12.3)
Exposure to confirmed cases outside the hospital
No	2269 (93.8)	149 (6.2)
Yes with PPE	75 (83.3)	15 (16.7)
Yes without PPE	120 (77.9)	34 (22.1)