Facts
The survey methodology
The survey is a repeated cross-sectional study based on random samples drawn from the national population registers. In 2024, approximately 1,000 adults and 500 children were invited to participate in each country. Data were collected using a combination of computer-assisted telephone interviews and online questionnaires (mixed-mode), and responses were weighted by age, sex and education so that the results are representative at population level in each country and can be compared across the Nordic region.