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KMID : 0191120210360140101
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Journal of Korean Medical Science
2021 Volume.36 No. 14 p.101 ~ p.101
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Clinical Application of the Standard Q COVID-19 Ag Test for the Detection of SARS-CoV-2 Infection
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Oh Sang-Min
Jeong Hyeon-Ju
Chang Eui-Jin
Choe Pyoeng-Gyun
Kang Chang-Kyung
Park Wan-Beom
Kim Taek-Soo
Kwon Woon-Yong
Oh Myoung-Don
Kim Nam-Joong
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Abstract
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We evaluated the Standard Q COVID-19 Ag test for the diagnosis of coronavirus disease 2019 (COVID-19) compared to the reverse transcription-polymerase chain reaction (RT-PCR) test. We applied both tests to patients who were about to be hospitalized, had visited an emergency room, or had been admitted due to COVID-19 confirmed by RT-PCR. Two nasopharyngeal swabs were obtained; one was tested by RT-PCR and the other by the Standard Q COVID-19 Ag test. A total of 118 pairs of tests from 98 patients were performed between January 5 and 11, 2021. The overall sensitivity and specificity for detecting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) for the Standard Q COVID-19 Ag test compared to RT-PCR were 17.5% (95% confidence interval [CI], 8.8?32.0%) and 100% (95% CI, 95.3?100.0%). Analysis of the results using RT-PCR cycle thresholds of ≤ 30 or ≤ 25 increased the sensitivity to 26.9% (95% CI, 13.7?46.1%), and 41.1% (95% CI, 21.6?64.0%), respectively.
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KEYWORD
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SARS-CoV-2, COVID-19, Antigen Test
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