Article

The effect of SARS-CoV-2 testing on healthcare seeking behaviour at primary care level: implications for COVID-19 vaccine effectiveness estimates in test-negative design studies

2025-04-01

Abstract excerpt

<h4>Background</h4> Diagnostic (self-)testing for SARS-CoV-2 may lead to selection bias in test-negative case-control designs (TND) for COVID-19 vaccine effectiveness (CVE) at primary care level. We investigated whether after the acute phase of the pandemic, (self-)testing among those with an acute respiratory infection (ARI) was associated with healthcare seeking behaviour at primary care level in the general Du...

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Literature Corpus work: c867e328-f4f7-544e-916b-8583b5389ceb
DOI: 10.1101/2025.03.31.25324928

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