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CHAPTER 7 138 twelve months varied from 10% (parenting problems enroled in CAMH) to 34% (internalizing problems enroled in PCH). This confirms previous findings [9, 53-55]. A substantial percentage of the children and adolescents and their families may thus benefit from psychosocial care, their problems being either resolved or relieved. These positive findings on outcomes of care, i.e. a substantial reduction in problem solution and problem severity, somewhat counterbalance the general community’s expectations barriers to psychosocial care. These expected barriers mainly concerned the irrelevance of treatment, the expectation that treatment would not work (Chapter 2 and 3). However, our results in Chapter 6 demonstrate that many children and adolescents enroled in psychosocial care experience at least partial problem solution. Finally, we found substantial reduction of problems among children, adolescents and families enroled in care. At the same time we found substantial reduction of problems among children and their families – with problems – who were not enroled in care. This is in line with earlier evidence on the need for care that indicates that some adolescents with psychosocial problems do need care (according to their parents) whereas others apparently do not [3, 4]. METHODOLOGICAL CONSIDERATIONS For this thesis we used data from the TakeCare study, which is part of C4Youth [45]. The TakeCare study demonstrates that it is possible to set-up a longitudinal prospective cohort study of children and adolescents enroled in psychosocial care in order to generate valuable insights for research, policy and practice [45]. For this thesis we examined enrolment in the systemof psychosocial care from the perspective of children, adolescents and their parents. Below, we will describe the main strengths and limitations of our study regarding the quality of the sample, the quality of the information obtained, and causality and confounding. Quality of the sample An evident strength of our cohort study is the inclusion of children and adolescents enroled in psychosocial care as well as children and adolescents from the community. We were able to include children and adolescents in a well-defined catchment area and provide an overview of the main types of psychosocial care. Another strength is our large sample size (N=1,382 care sample, N=666 community sample), the extensive recruitment procedure, the successful actions to reduce missing data, and the relatively good response rate (56.6% response care sample, and 70.3% response community sample) [45]. Compared to the community sample, the response in the care sample was lower.