title: Sleep in children with chronic illness, and the relation to emotional and behavioral problems--a population-based study.
abstract: OBJECTIVE
  To examine sleep and sleep problems in children with chronic illness, and the potential effect of emotional and behavioral problems.
  
  
  METHODS
  The Bergen Child Study is a total population study. Based on data from the second wave, information about sleep was given by 5,781 children and their parents, of which 496 children (8.6%) had a chronic illness.
  
  
  RESULTS
  There were no differences in time in bed between children with a chronic illness and their healthy peers. However, the chronic illness group reported more problems falling asleep and had more nighttime awakenings. The increased risk for sleep problems was reduced to a nonsignificant level when adjusting for emotional and behavioral problems.
  
  
  CONCLUSIONS
  The elevated rate of sleep problems and association with emotional and behavioral problems in children with chronic illness underline the importance of early detection and intervention in this group.
authors.affiliation: Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway. mari.hysing@psybp.uib.no
authors.forename: Mari
authors.initials: M
authors.lastname: Hysing
authors.forename: Børge
authors.initials: B
authors.lastname: Sivertsen
authors.forename: Kjell Morten
authors.initials: KM
authors.lastname: Stormark
authors.forename: Irene
authors.initials: I
authors.lastname: Elgen
authors.forename: Astri J
authors.initials: AJ
authors.lastname: Lundervold
mesh_terms: D000342:Affective Symptoms / Q000453:epidemiology* / Q000523:psychology; D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology / Q000523:psychology; D015992:Body Mass Index; D002648:Child; D002653:Child Behavior Disorders / Q000453:epidemiology* / Q000523:psychology; D002908:Chronic Disease / Q000453:epidemiology* / Q000523:psychology; D015897:Comorbidity; D019955:Conduct Disorder / Q000453:epidemiology / Q000523:psychology; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D009664:Norway; D010379:Peer Group; D012016:Reference Values; D012307:Risk Factors; D007319:Sleep Initiation and Maintenance Disorders / Q000453:epidemiology* / Q000523:psychology; D012917:Social Adjustment