Determinants of COVID-19 Vaccine Uptake in The Netherlands: A Nationwide Registry-Based Study

Abstract

By September 2022, the uptake of at least one dose of COVID-19 vaccine in the Dutch adult population was 84%. Ecological studies have indicated a lower uptake in certain population groups. We aimed to investigate determinants of COVID-19 vaccine uptake in the Netherlands at individual level to evaluate and optimize implementation of the vaccination program and generate hypotheses for research on drivers of, and barriers to, vaccination. A retrospective database study was performed including the entire Dutch population ≥ 18. Vaccination data (5 January 2021–18 November 2021) were at individual levels linked to sociodemographic data. Random forest analyses ranked sociodemographic determinants of COVID-19 vaccine uptake. The most important determinant was age; uptake increased until the age of 80 (67% in 18–35 years, 92% in 67–79 years, and 88% in those > 80). Personal income and socioeconomic position ranked second and third, followed by migration status. Uptake was lower among individuals in the lowest income group (69%), those receiving social benefits (56%), and individuals with two parents born abroad (59%). Our finding that age is the most important determinant for uptake likely reflects the prioritisation of elderly in the programme and the general understanding of their increased vulnerability. However, our findings also reveal important other disparities in vaccine uptake. How to best address this inequity in future vaccination campaigns requires further research.

SARS‐CoV‐2 Seroprevalence Trends in the Netherlands in the Variant of Concern Era: Input for Future Response

“…Vaccination coverage was generally high and effectively changed the epidemiology, yet at the same time Variants of Concern (VOC) emerged. The increased transmissibility [ 5 ] and severity of Alpha and, thereafter, Delta caused a steep rise in reported cases, hospital‐ and intensive care unit (ICU) admissions and deaths predominantly among unvaccinated individuals [ 5 , 6 , 7 , 8 , 9 , 10 ], thus mainly affecting groups with low access and uptake of vaccines [ 11 ]. All persons aged ≥ 12 years had been offered primary vaccination before the end of 2021.…”