a score for each mental health
problem and health care use measurement was calculated,
including self-reports for children and adolescents aged
14 years and older as well as proxy-reports for the younger
ages (for the CBCL, only the proxy-report was available).
This approach was necessary due to the fact that health care
use was only measured by self-report for children and adolescents
aged 14 years and older as well as proxy-report for
the younger ages at baseline.