title: A longitudinal follow-up study of young children's sleep patterns using a developmental classification system.
abstract: Sixty-eight families participated in a longitudinal study that included video observations of sleep during the 1st year of life and annual follow-up phone interviews until the children were 4 years of age. Results revealed that approximately 19% of children have a sleep problem at 2 years of age, defined either by research criteria or parental report, and that sleep problems diminished over time. Approximately 25% of children were reported to be cosleeping at each follow-up interview, but only a third of the parents reported this behavior to be problematic. A subgroup of infants (33%), who were considered stable, non-self-soothers in the 1st year, were more likely to have a sleep onset problem and be cosleeping at the 2-year follow-up assessment.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University, USA.
authors.forename: Erika E
authors.initials: EE
authors.lastname: Gaylor
authors.forename: Melissa M
authors.initials: MM
authors.lastname: Burnham
authors.forename: Beth L
authors.initials: BL
authors.lastname: Goodlin-Jones
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Anders
mesh_terms: D000367:Age Factors; D002140:California; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D007223:Infant; D008297:Male; D010287:Parent-Child Relations; D007319:Sleep Initiation and Maintenance Disorders / Q000145:classification / Q000453:epidemiology; D012893:Sleep Wake Disorders / Q000145:classification / Q000453:epidemiology*; D012931:Social Environment