title: Relationship between weekend catch-up sleep and poor performance on attention tasks in Korean adolescents.
abstract: OBJECTIVE
  To investigate the relationship between insufficient sleep and poor attention in Korean adolescents, adjusting for potential confounding factors of depressed mood and habitual snoring.
  
  
  METHODS
  School-based cross-sectional study.
  
  
  METHODS
  Eight high schools in 3 cities in the Republic of Korea.
  
  
  METHODS
  A sample of 2638 urban high school students (42.2% male and 57.8% female; mean [SD] age, 17.3 [0.6] years [age range, 14-19 years]) completed questionnaires and computerized attention tasks during the school term.
  
  
  METHODS
  Weekend catch-up sleep.
  
  
  METHODS
  Self-reported sleep schedules and habits, including sleep duration, bedtime, wake-up time, depressed mood, and habitual snoring. Also measured were numbers of omission and commission errors on computerized attention tasks.
  
  
  RESULTS
  The mean (SD) sleep duration on weekdays was 5 hours 42 minutes (1 hour 0 minutes) per day and on weekends was 8 hours 24 minutes (1 hour 36 minutes) per day. The mean (SD) weekend catch-up sleep was 2 hours 42 minutes (1 hour 42 minutes) per day. After adjusting for age, sex, depressed mood (Beck Depression Inventory score, ≥10), habitual snoring, and weekday sleep duration, increased weekend catch-up sleep was significantly associated with more omission and commission errors on sustained attention tasks (P < .001 and P = .03, respectively) and on divided attention tasks (P = .01 and P = .04, respectively).
  
  
  CONCLUSIONS
  Increased weekend catch-up sleep as an indicator of insufficient weekday sleep is associated with poor performance on objective attention tasks. Assessment of catch-up sleep and sleep duration may be useful for physicians to evaluate sleep insufficiency and its adverse effects on attention in adolescents.
authors: Department of Psychiatry, Gachon University of Medicine and Science, Incheon, Republic of Korea.
authors: Seog Ju
authors: SJ
authors: Kim
authors: Yu Jin
authors: YJ
authors: Lee
authors: Seong-Jin
authors: SJ
authors: Cho
authors: In-Hee
authors: IH
authors: Cho
authors: Weonjeong
authors: W
authors: Lim
authors: Wonshin
authors: W
authors: Lim
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000704:Analysis of Variance; D001288:Attention; D016009:Chi-Square Distribution; D002940:Circadian Rhythm; D003430:Cross-Sectional Studies; D005260:Female; D006184:Habits; D006801:Humans; D016014:Linear Models; D008297:Male; D056910:Republic of Korea; D012307:Risk Factors; D012892:Sleep Deprivation / Q000503:physiopathology*; D011795:Surveys and Questionnaires; D013647:Task Performance and Analysis; D013997:Time Factors; D055815:Young Adult