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Sample details

This study is a large Danish health and morbidity survey entitled "How are you?" (original Danish title "Hvordan har du det?"). Denmark is divided into five geographic and administrative regions, and this study was conducted in the Central Denmark Region where approximately one-fifth of the Danish population lives. This survey has been run in 2010, 2013/2014, 2017 and 2021. A random sample living in the Central Denmark Region, Denmark were invited to participate in the survey. The sample was drawn from the Danish Civil Registration System using the unique personal identification number assigned to all Danish citizens. In 2010, 2013/2014, and 2017, the questionnaire was fully or partially completed by 15,165, 14,265, and 14,022 respondents, respectively.

Study design
Cohort

Number of participants at first data collection

15,165 (participants)

Age at first data collection

Varied (participants)

Participant year of birth

Varied (participants)

Participant sex
All

Representative sample at baseline?
The population in the Central Denmark Region.

Sample features

Adults
Dataset details

Country

Denmark

Year of first data collection

2010

Primary Institutions

DEFACTUM (Social & Health Services and Labour Market, Social, sundhed og arbejdsmarked)

Links

defactum.dk/forskning/befolkningsundersogelser/hvordan-har-du-det/

doi.org/10.1093/eurpub/ckaa064

Funders

Central Denmark Region (Region Midtjylland)

Ongoing?
Yes

Data types collected

mentalHealthData
dataLinkage
Quantitative data collection
  • Secondary data
  • Self-report questionnaire – online
  • Self-report questionnaire – paper or computer assisted
Qualitative data collection
  • None
Neuroimaging data collection
  • None
Linked or secondary data
  • Census data
  • Education data
  • Healthcare data
  • Mortality data
Features

Engagement

  • None
  • Keywords

    Diet and nutrition
    Life outcomes
    Lifecourse
    Mental health
    Registry
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