Table 1.
Characteristics of 5,844,172 individuals tested by PCR-test or rapid antigen-test, by group of test frequency, categorised as: Never, rarely, commonly and often, Denmark, 2020–2022.
Fig 1.
Number of performed PCR-tests (light blue) and rapid antigen-tests (blue) by sample date, February 27, 2020 to March 10, 2022.
Fig 2.
Active PCR-test stations in Denmark by year and ISO week.
A test station was included as active if ≥1 test performed was registered.
Table 2.
Characteristics of all individuals tested by PCR in Denmark in the three waves.
Fig 3.
Adjusted IRR for PCR-testing by sex, age, vaccination status, infection status, heritage and type of area in three study periods.
IRR were adjusted for age group, sex, vaccination status, SARS-CoV-2 infection status, heritage, and type of area.