BEfragung zum seeLischen WohLbefinden und VerhAlten (BELLA)
The BELLA study is the mental health module of the German National Health Interview and Examination Survey among Children and Adolescents (KiGGS) and aims to assess the mental health and well-being of children and adolescents in Germany. It focuses on identifying the prevalence of mental health problems and disorders, as well as examining risk and protective factors that influence mental health development. Participants are a subset of the KiGGS sample, recruited from across Germany between the ages of 7 and 17. In addition to those participants assessed at baseline, further KiGGS participants have been added to later waves of BELLA to maintain the representativeness of the sample. Baseline data of almost 3,000 participants was collected from 2003 to 2006 and subsequent waves have taken place at one, two, six and 11 years.
Study design
Cohort - open
Number of participants at first data collection
2,863 (participants)
Recruitment is ongoing
Age at first data collection
7 - 17 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
The German population of children and adolescents.
Sample features
Country
Year of first data collection
2003
Primary Institutions
Robert Koch Institute (Robert Koch Institut, RKI)
University Medical Center Hamburg-Eppendorf (Universitätsklinikum Hamburg-Eppendorf, UKE)
Profile paper DOI
Funders
German Federal Ministry of Health (Bundesministerium für Gesundheit, BMG)
German Research Foundation (Deutsche Forschungsgemeinschaft, DFG)
Ongoing?
Yes
Data types collected
- Interview – face-to-face
- Interview – phone
- Self-report questionnaire – online
- Self-report questionnaire – paper or computer assisted
- None
- None
- None
Engagement
Keywords
