title: Academic performance among adolescents with behaviorally induced insufficient sleep syndrome.
abstract: OBJECTIVE
  The present study investigated academic performance among adolescents with behaviorally induced insufficient sleep syndrome (BISS) and attempted to identify independent predictors of academic performance among BISS-related factors.
  
  
  METHODS
  A total of 51 students with BISS and 50 without BISS were recruited from high schools in South Korea based on self-reported weekday sleep durations, weekend oversleep, and the Epworth Sleepiness Scale (ESS). Participants reported their academic performance in the form of class quartile ranking. The Korean version of the Composite Scale (KtCS) for morningness/eveningness, the Beck Depression Inventory (BDI) for depression, and the Barratt Impulsiveness Scale-II (BIS-II) for impulsivity were administered.
  
  
  RESULTS
  Adolescents with BISS reported poorer academic performance than adolescents without BISS (p = 0.02). Adolescents with BISS also exhibited greater levels of eveningness (p < 0.001), depressive symptoms (p < 0.001), and impulsiveness (p < 0.01). Longer weekend oversleep predicted poorer academic performance among adolescents with BISS even after controlling for ESS, KtCS, BDI, and BIS-II (β = 0.42, p < 0.01).
  
  
  CONCLUSIONS
  BISS among adolescents is associated with poor academic performance and that sleep debt, as represented by weekend oversleep, predicts poorer academic performance independent of depression, impulsiveness, weekday sleep duration, daytime sleepiness, and morningness/eveningness among adolescents with BISS.
authors.affiliation: Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
authors.forename: Juhyun
authors.initials: J
authors.lastname: Park
authors.affiliation: Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
authors.forename: Soohyun
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Psychiatry, Gachon University of Medicine and Science, Incheon, Republic of Korea.
authors.forename: Seong-Jin
authors.initials: SJ
authors.lastname: Cho
authors.affiliation: Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea.|Department of Medical Science, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: Seog Ju
authors.initials: SJ
authors.lastname: Kim
mesh_terms: D000124:Achievement; D000293:Adolescent; D000294:Adolescent Behavior; D005260:Female; D006801:Humans; D008297:Male; D056910:Republic of Korea; D012892:Sleep Deprivation / Q000503:physiopathology*; D013334:Students; D011795:Surveys and Questionnaires; D013577:Syndrome
keywords: academic performance; adolescent; behaviorally induced insufficient sleep syndrome; weekend oversleep