Sensitivity of rapid antigen tests for COVID-19 during the Omicron variant outbreak among players and staff members of the Japan Professional Football League and clubs: a retrospective observational study.
BMJ Open
; 13(1): e067591, 2023 01 30.
Article
in English
| MEDLINE | ID: covidwho-2223672
ABSTRACT
OBJECTIVES:
Rapid antigen tests have been used to prevent the spread of the COVID-19; however, there have been concerns about their decreased sensitivity to the Omicron variant. In this study, we assessed the sensitivity and specificity of the rapid antigen test compared with the PCR test among the players and staff members of the Japan Professional Football League and clubs. Furthermore, we evaluated the relationship between the sensitivity and the duration from the onset of symptoms to testing or vaccine status.DESIGN:
This was a retrospective observational study.METHODS:
We used 656 results from both the rapid antigen and PCR tests for COVID-19 using samples collected on the same day from 12 January to 2 March 2022, during the Omicron variant outbreak in Japan.RESULTS:
The sensitivity of the rapid antigen test compared with the PCR test was 0.63 (95% CI 0.53 to 0.73) and the specificity was 0.998 (95% CI 0.995 to 1.000). There were no significant associations between the sensitivity and the duration from the onset of symptoms to testing (including asymptomatic cases in the category) or vaccination status (p>0.05) with small effect sizes (Cramer's V or φ ≤0.22).CONCLUSIONS:
Even during the Omicron outbreak, the sensitivity of the rapid antigen tests did not depend on the duration from the onset of symptoms to testing.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Athletes
/
Football
/
COVID-19 Testing
Type of study:
Diagnostic study
/
Experimental Studies
/
Observational study
/
Prognostic study
Topics:
Vaccines
/
Variants
Limits:
Humans
Country/Region as subject:
Asia
Language:
English
Journal:
BMJ Open
Year:
2023
Document Type:
Article
Affiliation country:
Bmjopen-2022-067591
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