Nationwide Implementation of Unguided Cognitive Behavioral Therapy for Adolescent Depression: Observational Study of SPARX

Terry Fleming   ^{1, 2} , PhD ;   Mathijs Lucassen   ³ , PhD ;   Chris Frampton   ⁴ , PhD ;   Varsha Parag   ⁵ , MSci ;   Chris Bullen   ⁶ , PhD ;   Sally Merry   ⁷ , MD ;   Matthew Shepherd   ⁸ , DClinPsych ;   Karolina Stasiak   ⁷ , PhD

¹ Te Kura Tātai Hauora School of Health, Victoria University of Wellington, Wellington, New Zealand

² Department of Epidemiology and Biostatistics, The University of Auckland, Auckland, New Zealand

³ School of Health and Psychological Sciences, City St George's, University of London, London, United Kingdom

⁴ Psychological Medicine, University of Otago, Christchurch, New Zealand

⁵ National Institute for Health Innovation (NIHI), The University of Auckland, Auckland, New Zealand

⁶ School of Population Health, The University of Auckland, Auckland, New Zealand

⁷ Department of Psychological of Medicine, The University of Auckland, Auckland, New Zealand

⁸ School of Psychology, Massey University, Auckland, New Zealand