What question did this study set out to answer?

This research aims to explore how SARS-CoV-2 testing affects healthcare-seeking behaviour in primary care settings.

March 13, 2026International Journal of Epidemiology0 citations

The effect of SARS-CoV-2 testing on healthcare-seeking behaviour at primary care level

CHCheyenne C. E. van HagenNational Institute for Public Health and the Environment EVEric R. A. VosNational Institute for Public Health and the Environment CDCharlotte Lanièce DelaunayHelicon Foundation

Key Points

This research aims to explore how SARS-CoV-2 testing affects healthcare-seeking behaviour in primary care settings.
Analyzed GP consultations in a Dutch population between March 2022 and May 2023.
Examined the association between self-test results and vaccination status on consultations.
Used cohort data to assess potential biases in testing before GP consultations.
Consultation patterns varied based on self-test results and vaccination status.
Indications of selection bias in evaluating COVID-19 vaccine effectiveness were found.
Further investigation in different settings is recommended.

Abstract

Findings from this Dutch-population-based cohort suggest that GP consultations between March 2022 and May 2023 may have differed by self-test result and vaccination status, indicating that selection bias in the TND COVID-19 VE estimates from testing before GP consultation could be a valid concern. More research in various settings is needed.

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