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. 2021 Oct 17;11(10):e051573. doi: 10.1136/bmjopen-2021-051573

Figure 2.

Figure 2

SARS-CoV-2 seropositivity among different age categories. Age categories are defined by years. ORs and 95% CIs are based on multivariate logistic regression analysis, with age group 17–30 years as reference group and adjusted for COVID-19 confirmed and suspected contact, occupation and department as confounders.