title: [Sleeping behavior between the ages of 2 and 18. Longitudinal study].
abstract: Sleeping behavior was investigated in 320 Swiss children 2 to 18 years of age. The data were based on the First Zurich Longitudinal Study (1954-1980). The incidence of resistant behaviour at bedtime increased from 8 to 40% between age 2 and 10. Evening wakefulness was observed in 20% of the 2- to 7-year-old children, and in 40-50% of the older children. The incidence of night waking decreased from 40-50% in the preschool period to 20% at age 12.20% of the 2 to 4-year-old children and only 1% of the 12-year-old children woke up every night. Evening wakefulness and night waking were observed in some children over periods of several years. Up to age 5 the incidence of "bad dreaming" was 60%, subsequently it decreased to about 25%. Somnambulism was observed in 5% of the children. None of the described sleeping behaviors showed sex differences.
mesh_terms: D000293:Adolescent; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D004325:Dreams; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D012737:Sex Factors; D012890:Sleep
vernacular_title: Aspekte des Schlafverhaltens zwischen 2 and 18 Jahren. Longitudinale Studie.