Table 1. Seroprevalence of SARS-CoV-2 IgG in healthcare workers, COVID-19 patients, and community-based population

Ann Clin Microbiol 2021;24:55-60. Evaluation of Seroprevalence of SARS-CoV-2 IgG in Healthcare Workers in a Tertiary Hospital in Seoul

Table 1. Seroprevalence of SARS-CoV-2 IgG in healthcare workers, COVID-19 patients, and community-based population

Variable	Healthcare worker	Patients	Community
Number	155	7	186
Positive, n (%, 95% CI)	1 (0.6%, 0.1 – 3.6)	7 (100%, 64.5 – 100)	0 (0.0%, 0.0 – 2.0)
S/C^*	2.32, 2.31	3.79 (1.72 – 6.54)	–

*The values indicate two positive results of an HCW and median (ranges) for positive results of COVID-19 patients. Abbreviations: SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; IgG, immunoglobulin G; COVID, coronavirus disease; n, number; CI, confidence interval; S/C, signal-to-cutoff.