Statistically, the results of the antigen tests used in the study are indistinguishable from each other (p-value = 0.4533) but differ significantly from RT-PCR (p-value = 2.546 × 10−6 for SGTI-flex COVID-19 Ag, p-value = 1.519 × 10−8 for Biocredit COVID-19 Ag). Here, RENBP is linked to COVID-19.