Background: High vaccination coverage against COVID-19 limits COVID-19-related infections, hospitalisations and deaths. Studies have shown varying vaccine willingness and vaccine coverage in different minority groups. This study investigates the vaccination coverage among persons with various immigration and country backgrounds in Norway.
Material and method: The study includes all persons over 18 years of age resident in Norway with a Norwegian national identity number. We used data from Beredt C19, the Norwegian emergency preparedness register for COVID-19, and investigated the association between vaccine status and immigrant and country background using logistic regression models, adjusted for income, education, sex, age, medical risk group and place of residence.
Results: Foreign- and Norwegian-born persons with foreign-born parents had a lower COVID-19 vaccine coverage than those who were Norwegian-born with Norwegian-born parents. Vaccination coverage for different country backgrounds varied from around 45 % for persons from Latvia, Bulgaria, Poland, Romania and Lithuania to 92 % for persons from Vietnam, Thailand and Sri Lanka. Those in the former group had from 15 to 18 times (unadjusted) and from 8 to 11 times (adjusted) higher odds of not having been vaccinated as persons with a country background from Norway.
Interpretation: There is considerable variation in COVID-19 vaccine coverage between different immigrant groups in Norway. The differences can be explained to some extent by income and education, but this does not explain the bulk of the observed differences. We cannot rule out the possibility that some differences are attributable to weaknesses in the registers.