Evaluation of rapid antigen test (ExacTest™ COVID-19 Antigen Rapid Test) results when omicron variant is common

Purpose: The present study aims to compare the results of COVID-19 rapid antigen test (ExacTest™ Antigen Rapid Test) and real-time polymerase chain reaction (RT-PCR) in samples people suspected coronavirus disease (COVID-19).
 Materials Methods: Among submitted between January 2022 March with suspicion COVID-19, 299 subject simultaneous RADT (Rapid Detection RT-PCR were evaluated retrospectively. Real-Time PCR was studied DS CORONEX Multiplex Real time-qPCR Test Kit (DS Nano Biotechnology Product Tracing Tracking Co., Turkey) by immunochromatographic method ExacTest™ Cassette kit (General Diagnostica inc., California, USA). Ag-RDT fluorescent immunoassay analyzer (FIATEST Analyzer, Hangzhou Alltest Biotech Ltd. China). 
 Results: positive 53 (17.7%) samples. RADT's sensitivity found 88.7 (95% Cl 77.0-95.7), specificity 98.0 95.3-99.3), predictive value 90.4 79.7-95.8), negative 97.6 95.0-98.8), accuracy 96.3 93.5-98.2). Sample sensitivities patients under over 18 years age have been identified as 75 19.4-99.4) 89.8 77.8-96.6), respectively. without symptoms 95.5 77.2-99.9) 83.9 66.3-94.6), For a cycle threshold (Ct)