Die vorliegende Arbeit befasst sich mit der Prävention psychischer Erkrankungen bei Kindern und Jugendlichen. Sie verbindet fünf Publikationen. Wird zunächst die besondere Eignung von Schule als Setting zur Förderung psychischer Gesundheit erörtert, verdeutlicht eine systematische Übersichtsarbeit den Bedarf in diesem Bereich, und stellt die Bedeutung einer Kombination von Informationsvermittlung und direktem Kontakt mit Betroffenen heraus. Im zweiten Teil der Arbeit werden sowohl qualitative wie auch quantitative Evaluationen von Interventionen des Leipziger Vereins \"Irrsinnig Menschlich e.V.\" vorgestellt. Zum einen wurden Schüler, Lehrer und Eltern der Projektschulen des \"Schulcoach\"-Projekts in Fokusgruppen und mittels Fragebögen befragt, welche Entwicklungen diese spezielle Form der systemischen Betreuung angestoßen hat und welchen Einfluss die Schulcoaches auf die Rolle der psychischen Gesundheit im Schulalltag nahmen. Des Weiteren werden Schüler mittels einer qualitativen Fokusgruppen-Erhebung gezielt nach der äußeren Gestaltung, der thematischen Ausrichtung und dem Nutzungsverhalten von eigens gestalteten Informationsmaterialien, den \"Info-Pocket-Guides\", befragt. Die Ergebnisse dieser Evaluationen werden schließlich vor dem Hintergrund des Eingangs dargestellten Bedarfs diskutiert.:1. Bibliographische Beschreibung 2. Einführung 2.1. Die Prävalenz psychischer Störungen und ihre Auswirkungen 2.2. Psychische Gesundheit bei Kindern und Jugendlichen 2.3. Die Rolle der Schule als Setting für präventive Maßnahmen 2.4. Ziele dieser Arbeit 3. Schule als Setting zur Prävention psychischer Störungen: Chancen, Perspektiven und Beispiele guter Praxis 4. School-based prevention programs for depression and anxiety in adolescence: a systematic review 5. Übergang 6. Die Förderung psychischer Gesundheit in der Schule durch Schulcoaches: Evaluation eines Modellprojekts in Sachsen 7. Do \"School Coaches\" make a difference in school-based mental health promotion? – Results from a large focus group study 8. Info-Pocket-Guides als Beitrag zur Prävention psychischer Erkrankungen: Wie bewerten SchülerInnen Inhalt, Design und Nutzen? 9. Diskussion 10. Zusammenfassung 11. Literaturverzeichnis I. Danksagung II. Erklärung über die eigenständige Abfassung der Arbeit III. Curriculum Vitae IV. Publikationen

Student health consists of several professions that together build a team with several professions. The team works to promote students' mental and physical health. The goal for student health is that all participating professions work together to ensure that all students feel involved, valuable and motivated to achieve the official school goals. Depending on how well this teamwork operates, it can either be an enabling or hindering factor for the student's participation in school activities. This study aims to investigate how a student health team can best work to create the sense of context that the school requires both by law and its required values. The study is based on two popular science books about health and unhealthiness in school and a fiction book with a "case description" of two teenage girls from different psychosocial environments feeling mentally ill. The results of the study show that student health teams can function well as there is a clear structure and determination among all participating professions. Some issues the popular science books discussed were the need to focus on health promotion and to provide adequate time for the required preventive work. A further development of this study is recommended to gain an understanding of the individual thoughts in student health and thereby make a comparison with the study that we have done through our interpretation of the literature.

Background: Police officers are at high risk for mental and physical health problems and suicidal ideation. The specific risk factors are numerous and concern stressful missions and administrative aspects of the police profession. So far, the police get only little training on specific missions as well as on coping with stress and suicidal ideation in the police profession. In this study we test the efficacy of the online training COPS (Coping with Suicide) for police officers. Methods: A total of 142 police officers fromGermany and Switzerland participated in the study; complete data (baseline and post) are available from 102 participants. The training consisted of three modules covering the topics of delivering death notifications, dealing with individuals with suicidal ideation and dealing with one’s own distress and suicidal ideation in the police profession. The primary outcomes are perceived knowledge and self-rated competence regarding the contents of the program, actual knowledge as well as symptoms of depression and anxiety (PHQ-9), and attitudes toward suicide (ATTS). The data are collected at baseline and after completing the training. Results: We found a significant increase in knowledge as well as in perceived competence after completing the training. Mental health and attitudes toward suicide did not change significantly. Years on the job had no moderating effect on the effectiveness of the training. Discussion: The results suggest that a short e-learning program significantly improves knowledge and self-rated competence in delivering death notifications, in suicide prevention and stress management. It can be easily integrated into the daily routine of police-officers, and participants could participate at their own pace and from any location. One limitation of this study is the lack of a control-group. Further advantages and limitations of this study are discussed.

Background: School-based mental health promotion aims to strengthen mental health and reduce stress. Results on the effectiveness of such programs are heterogeneous. This study realized a school-based mental health promotion program (StresSOS) for all students and aimed to identify moderators (mental health status, gender, grade level) of pre- to post-changes in stress symptoms and knowledge. Methods: Participants were N = 510 adolescents (from 29 classes; 46.7% female) aged 12–18 years (M = 13.88, SD = 1.00; grade levels 7–10). They were without mental health problems (65.9%), at risk for mental health problems (21.6%), or with mental health problems (12.5%) and participated in a 90 min per week face-to-face training with 8 sessions in class at school. Demographic variables, mental health status, stress symptoms, and knowledge about stress and mental health were collected at baseline. Program acceptance, stress symptoms, and knowledge were collected post-intervention. Multilevel mixed effects models were conducted with the fixed effects time (within factor), mental health status, gender, and grade level (between factors). Random effects for students within classes were included. Results: In the pre-post comparison, mental health status moderated the changes on psychological stress symptoms (p < 0.05). In adolescents with mental health problems the largest reduction in stress symptoms was observed between pre- and post-assessment. Gender and grade level were less relevant. For all adolescents knowledge gains were revealed (p < 0.001). Program acceptance was moderated by mental health status and grade level (p < 0.01). Mentally healthy adolescents and within the group of adolescents at-risk or with mental health problems, especially younger students (7th/8th grade), rated program acceptance higher. Conclusion: Psychological stress symptoms decreased among adolescents with mental health problems and not among adolescents at risk for or without mental health problems. Mental health-related knowledge increased for all adolescents. The results add to knowledge on school-based mental health intervention research and practice. Its implications for different prevention strategies (universal, selective or a combination of both) are discussed.