1. Kieling C, Baker-Henningham H, Belfer M, Conti G, Ertem I, Omigbodun O, et al. Child and adolescent mental health worldwide: Evidence for action. Lancet. 2011;378(9801):1515–25. https://doi.org/10.1016/S0140-6736(11)60827-1
2. Ezpeleta L, Penelo E, Navarro JB, de la Osa N, Trepat E. Transdiagnostic trajectories of irritability and oppositional, depression and anxiety problems from preschool to early adolescence. Behav Res Ther. 2020;134:103727. https://doi.org/10.1016/j.brat.2020.103727
3. Goodman A, Lamping DL, Ploubidis GB. When to use broader internalising and externalising subscales instead of the hypothesised five subscales on the Strengths and Difficulties Questionnaire (SDQ): Data from British parents, teachers and children. J Abnorm Child Psychol. 2010;38(8):1179–91. https://doi.org/10.1007/s10802-010-9434-x
4. Angold A, Costello EJ, Erkanli A. Comorbidity. J Child Psychol Psychiatry. 1999;40(1):57–87. https://doi.org/10.1111/1469-7610.00424
5. Bianchi V, Brambilla P, Garzitto M, Colombo P, Fornasari L, Bellina M, et al. Latent classes of emotional and behavioural problems in epidemiological and referred samples and their relations to DSM-IV diagnoses. Eur Child Adolesc Psychiatry. 2017;26(5):549–57. https://doi.org/10.1007/s00787-016-0918-2
6. Essau CA, de la Torre-Luque A. Comorbidity profile of mental disorders among adolescents: A latent class analysis. Psychiatry Res. 2019;278:228–34. https://doi.org/10.1016/j.psychres.2019.06.007
7. Sallis H, Szekely E, Neumann A, Jolicoeur‐Martineau A, van Ijzendoorn M, Hillegers M, et al. General psychopathology, internalising and externalising in children and functional outcomes in late adolescence. J Child Psychol Psychiatry. 2019;60(11):1183–90. https://doi.org/10.1111/jcpp.13067
8. Mrazek PJ, Haggerty RJ (Eds.). Reducing risks for mental disorders: Frontiers for preventive intervention research. National Academy Press; 1994
9. Hendriks AM, Bartels M, Colins OF, Finkenauer C. Childhood aggression: A synthesis of reviews and meta-analyses to reveal patterns and opportunities for prevention and intervention strategies. Neurosci Biobehav Rev. 2018;91:278–91. https://doi.org/10.1016/j.neubiorev.2018.03.021
10. Sanchez AL, Cornacchio D, Poznanski B, Golik AM, Chou T, Comer JS. The effectiveness of school-based mental health services for elementary-aged children: A meta-analysis. J Am Acad Child Adolesc Psychiatry. 2018;57(3):153–65. https://doi.org/10.1016/j.jaac.2017.11.022
11.Werner-Seidler A, Perry Y, Calear AL, Newby JM, Christensen H. School-based depression and anxiety prevention programs for young people: A systematic review and meta-analysis. Clin Psychol Rev. 2017;51:30–47. https://doi.org/10.1016/j.cpr.2016.10.005
12. Horowitz JL, Garber J. The prevention of depressive symptoms in children and adolescents: A meta-analytic review. J Consult Clin Psychol. 2006;74(3):401–15. https://doi.org/10.1037/0022-006X.74.3.401
13. Dray J, Bowman J, Campbell E, Freund M, Wolfenden L, Hodder Rk, et al. Systematic Review of Universal Resilience-Focused Interventions Targeting Child and Adolescent Mental Health in the School Setting. J Am Acad Child Adolesc Psychiatry. 2017;56(10):813-824. https://doi.org/10.1016/j.jaac.2017.07.780
14. Ehrenreich-May J, Bilek EL. Universal prevention of anxiety and depression in a recreational camp setting: An initial open trial. Child Youth Care Forum. 2011;40(6):435–55. https://doi.org/10.1007/s10566-011-9148-4
15. Essau CA, Olaya B, Sasagawa S, Pithia J, Bray D, Ollendick TH. Integrating video-feedback and cognitive preparation, social skills training and behavioural activation in a cognitive behavioural therapy in the treatment of childhood anxiety. J Affect Disord. 2014;167:261–7. https://doi.org/10.1016/j.jad.2014.05.056
16. García-Escalera J, Chorot P, Sandín B, Ehrenreich-May J, Prieto A, Valiente RM. An open trial applying the unified protocol for transdiagnostic treatment of emotional disorders in adolescents (UP-A) adapted as a school-based prevention program. In: Child Youth Care Forum. 2019;48(1):29–53. https://doi.org/10.1007/s10566-018-9471-0
17. Martinsen KD, Rasmussen LMP, Wentzel-Larsen T, Holen S, Sund AM, Løvaas MES, et al. Prevention of anxiety and depression in school children: Effectiveness of the transdiagnostic EMOTION program. J Consult Clin Psychol. 2019;87(2):212–9. https://doi.org/10.1037/ccp0000360
18. Loevaas MES, Lydersen S, Sund AM, Neumer SP, Martinsen KD, Holen S, et al. A 12-month follow-up of a transdiagnostic indicated prevention of internalizing symptoms in school-aged children: The results from the EMOTION study. Child Adolesc Psychiatry Ment Health. 2020;14:15. https://doi.org/10.1186/s13034-020-00322-w
19. Essau CA, Sasagawa S, Jones G, Fernandes B, Ollendick TH. Evaluating the real-world effectiveness of a cognitive behavior therapy-based transdiagnostic program for emotional problems in children in a regular school setting. J Affect Disord. 2019;253:357–65. https://doi.org/10.1016/j.jad.2019.04.036
20. García-Escalera J, Valiente RM, Sandín B, Ehrenreich-May J, Prieto A, Chorot P. The unified protocol for transdiagnostic treatment of emotional disorders in adolescents (UP-A) adapted as a school-based anxiety and depression prevention program: An initial cluster randomized wait-list-controlled trial. Behav Ther. 2020;51(3):461–73. https://doi.org/10.1016/j.beth.2019.08.003
21. Shelemy DL, Harvey DK, Waite DP. Meta-analysis and systematic review of teacher-delivered mental health interventions for internalizing disorders in adolescents. Ment Health Prev. 2020;19. https://doi.org/10.1016/j.mhp.2020.200182
22. Ishikawa SI, Kishida K, Oka T, Saito A, Shimotsu S, Watanabe N, et al. Developing the universal unified prevention program for diverse disorders for school-aged children. Child Adolesc Psychiatry Ment Health. 2019;13:44. https://doi.org/10.1186/s13034-019-0303-2
23. Lyon AR, Koerner K. User‐centered design for psychosocial intervention development and implementation. Clin Psychol (New York). 2016;23(2):180–200. https://doi.org/10.1111/cpsp.12154
24. Oka T, Ishikawa SI, Saito A, Maruo K, Stickley A, Watanabe N et al. Changes in self-efficacy in Japanese school-age children with and without high autistic traits after the universal unified prevention program: A single-group pilot study. Child Adolesc Psychiatry Ment Health. 2021;15:42. https://doi.org/10.1186/s13034-021-00398-y
25. Hida N, Ishikawa S, Murasawa T, Oguni M. Effect of universal unified prevention program for diverse disorders for junior high school students. Doshisha Clin Psychol Ther Res. 2020;10:3–13. https://doi.org/10.14988/00027868
26. Goodman R. Psychometric properties of the strengths and difficulties questionnaire. J Am Acad Child Adolesc Psychiatry. 2001;40(11):1337–45. https://doi.org/10.1097/00004583-200111000-00015
27. Noda W, Ito H, Harada S. Examining the reliability and validity of the Japanese version of the Strengths and Difficulties Questionnaire Self Ratings Form Using the entire cohort data in one suburban city in Japan. Jpn J Clin Psychiatry. 2013;42:119–27.
28. Ishikawa S, Ishii R, Fukuzumi N, Murayama K, Ohtani K, Sakaki M, et al. Development, reliability, and validity of the Japanese short version of the Spence children’s Anxiety Scale for Adolescents. Anxiety Disord Res. 2018;10(1):64–73. https://doi.org/10.14389/jsad.10.1_64
29. Spence SH, Sawyer MG, Sheffeield J, Patton G, Bond L, Greatz B. Does the Absence of a Supportive Family Environment Influence the Outcome of a Universal Intervention for the Prevention of Depression? Int. J. Environ. Res. Public Health. 2014;11(5):5113-5132. https://doi.org/10.3390/ijerph110505113
30. Birleson P. The validity of depressive disorder in childhood and the development of a self‐rating scale: A research report. J. Child Psychol. Psychiatry. 1981;22(1):73-88. https://doi.org/10.1111/j.1469-7610.1981.tb00533.x
31. Denda K, Kako Y, Kitagawa N, Koyama T. Assessment of depressive symptoms in Japanese school children and adolescents using the Birleson Depression Self-Rating Scale. Int J Psychiatry Med. 2006;36(2):231-41. https://doi.org/10.2190/3YCX-H0MT-49DK-C61Q
32. Namikawa T, Tani I, Wakita T. Development of a short-form Birleson Depression Self-Rating Scale for Children. Clin Psychiatry. 2011;53:489–96
33. Takebe M, Kishida K, Sato M, Takahashi F, Sato H. Development of an Anger Scale for Children and Adolescents and examination of its reliability and validity. Japanese Journal of Behavior Therapy. 2017;43(3):169-179. https://doi.org/10.24468/jjbt.16-180
33. Ishikawa S, Sasagawa S, Chen J, Essau CA. Prevention programs for depression among children and adolescents in Japan: Challenges and opportunities. In: Mental health and wellbeing through schools. Routledge; 2016. p. 181-194.
34. Ohira I, Urao Y, Sato Y, Ohtani T, Shimizu E. A pilot and feasibility study of a cognitive behavioural therapy-based anxiety prevention programme for junior high school students in Japan: A quasi-experimental study. Child Adolesc Psychiatry Ment Health. 2019;13:40. https://doi.org/10.1186/s13034-019-0300-5
35. Sato S, Ishikawa SI, Togasaki Y, Ogata A, Sato Y. Long‐term effects of a universal prevention program for depression in children: A 3‐year follow‐up study. Child Adolesc Ment Health. 2013;18(2):103–8. https://doi.org/10.1111/j.1475-3588.2012.00665.x
36. Urao Y, Ohira I, Koshiba T, Ishikawa SI, Sato Y, Shimizu E. Classroom-based cognitive behavioural therapy: A large-scale non-randomised controlled trial of the ‘Journey of the Brave’. Child Adolesc Psychiatry Ment Health. 2021;15(1):21. https://doi.org/10.1186/s13034-021-00374-6
37. Spence SH. Integrating individual and whole-school change approaches in the prevention of depression in adolescents. In: Handbook of depression in Children and adolescents. Guilford Press; 2008. p. 333–353.