title: Classification of young children's sleep problems: a pilot study.
abstract: OBJECTIVE
  This study examines videotaped sleep in infancy in an attempt to predict the development of disturbed sleep during toddlerhood. In addition, a tentative classification scheme that quantifies night waking and sleep onset problems in young children is proposed.
  
  
  METHODS
  The sleep patterns of 33 children were assessed at two points in time. At 12 months of age (time 1), sleep was videotaped on two consecutive nights. A self-soothing/signaling index for 12-month-olds was constructed. At time 2 (mean age = 39 months), a follow-up telephone interview assessed current sleep patterns and the presence or absence of sleep problems.
  
  
  RESULTS
  The data suggest that the self-soothing/signaling index obtained at 12 months of age predicts night waking approximately 2 years later.
  
  
  CONCLUSIONS
  The preliminary classification scheme for night waking and sleep onset problems in young children warrants further study. Night waking in toddlers might be predictable from sleep behaviors at 1 year of age.
authors.affiliation: Family-Infant Development Laboratory, Department of Psychiatry, University of California, Davis, 2230 Stockton Blvd., Sacramento, CA 95817, USA.
authors.forename: E E
authors.initials: EE
authors.lastname: Gaylor
authors.forename: B L
authors.initials: BL
authors.lastname: Goodlin-Jones
authors.forename: T F
authors.initials: TF
authors.lastname: Anders
mesh_terms: D002652:Child Behavior; D002675:Child, Preschool; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D007223:Infant; D018730:Infant Behavior; D008297:Male; D010865:Pilot Projects; D011379:Prognosis; D012890:Sleep; D012893:Sleep Wake Disorders / Q000145:classification*