The Bergen Child Study

The Bergen Child Study

The Bergen Child study (BCS) is a longitudinal cohort study that started in 2002 with the aim to follow children born in Bergen 1993 – 95 from early school age to college.

The data collection waves

The study consists of four data collection waves, and the first three of them, at ages 7-9, 11-13 and 14-16 years, were carried out in 2002/03, 2006 and 2009. The final data collection wave was renamed "youth@hordaland", and was carried out in spring 2012, when the participants were 17 -19 years of age.

We have asked the children themselves, their parents/legal guardians and their teachers to answer our questionnaires and some of the children have in addition to this been involved in more detailed assessments including clinical interviews and tests.

The Regional Centre for Child and Youth Mental Health and Child Welfare (RKBU West), NORCE is responsible for the study and it is approved by the Regional Committee for Medical Research Ethics, West-Norway, and the Norwegian Data Inspectorate.


The aim of the study is to gain knowledge that can contribute to better mental healthcare for children and adolescents. The Bergen Child Study is internationally among the most substantial research studies on children’s mental health and their development. Questions relating to the lifestyle of the participants, such as school functioning, family situation and social life are also included in the study.

For inquiries about the project contact bib@norceresearch.no

Project facts


The Bergen Child Study




01.01.01 - 31.12.23






Project members

Annika Skandsen
Børge Sivertsen
Liv Sand
Ole Andreas Hovda
Astri Johansen Lundervold


Universitetet i Bergen