BELLA study

The BELLA study measures mental health, behaviour and subjective well-being among children, adolescents, their families and young adults in Germany. The longitudinal BELLA study is the mental health module of the German National Health Interview and Examination Survey among Children and Adolescents (KiGGS), conducted by the Robert Koch Institute between 2003 and 2006 (basis) and between 2009 and 2012 (wave 1).


The BELLA cohort comprises a representative subsample of the KiGGS Survey of 3.000 children, adolescents and their families as well as young adults. In addition to the baseline assessment (2003-2006), the BELLA cohort was followed-up in three additional waves conducted in 2004 to 2007, 2005 to 2008 and 2009 to 2012. Data was collected through telephone interview and subsequent questionnaires by parent report and above 11 years by additional self report. The assessed information provides evidence for the prevalence and determinants of mental health problems in childhood and adolescence in Germany.


The main results of the BELLA study measuring the mental health of children and adolescents in Germany were published in the journal „Bundesgesundheitsblatt – Gesundheitsforschung – Gesundheitsschutz“:

Adobe Acrobat Dokument 2.2 MB
2007_Ravens-Sieberer_Psychische Gesundhe
Adobe Acrobat Dokument 575.7 KB


BELLA_Publication List_022016.pdf
Adobe Acrobat Dokument 163.7 KB

For more information please visit the website

Contact Person is Dr. Fionna Klasen.



Prof. Dr. phil. Ulrike Ravens-Sieberer

MPH, Professorin für


Gesundheitspsychologie und

Versorgung von Kindern und

Jugendlichen in Deutschland