Economic volatility in childhood and subsequent adolescent mental health problems: a longitudinal population-based study of adolescents Tormod Bøe, Jens Christoffer Skogen, Børge Sivertsen, Mari Hysing, Keith J. Petrie, Eric Dearing, Henrik Daae Zachrisson January 2017 PDF Cite DOI mental health poverty adolescence childhood latent class analysis adhd youth@hordaland Related Psychometric Properties and Concurrent Validity of the Crafft among Norwegian Adolescents. Ung@hordaland, a Population-Based Study Adolescent School Absenteeism and Service Use in a Population-Based Study Sleep and School Attendance in Adolescence: Results from a Large Population-Based Study.