To determine the relationship between cosleeping and sleep problems in cultures with very different sleep practices.
Families in urban Japan and the United States identified through pediatric and other professional contacts.
Parents of healthy 6-to 48-month-old children (56 Japanese parents and 61 white US parents).
All children had been breast-fed and lived in 2-parent, middle-class households.
None Main Outcome Measure : Sleep practices and sleep problems.
More Japanese than US children coslept 3 or more times per week (59% vs 15%, P<. 001).
All cosleeping Japanese children regularly slept all night with their parents (vs 11% of US cosleepers, P<. 001).
Japanese and US children did not differ in part-night cosleeping (7% vs 13%, P=37).
Most Japanese children had adult company and body contact as they fell asleep, and fathers slept separately in 23% of families.
A greater proportion ofUS children had regular bedtime struggles and night waking.
Within the US sample, cosleeping was associated with more bedtime struggles (P<. 001), night waking (P<. 01), and overall stressful sleep problems (P<. 01).
In the Japanese sample, cosleeping was associated only with night waking (P<. 05) ; however, the proportion of cosleeping Japanese children with frequent night waking was at the level reported for US children who slept alone (30% vs 23%. P=47). (...)
Mots-clés Pascal : Sommeil, Comportement, Trouble sommeil, Aspect culturel, Japon, Asie, Etude comparative, Corrélation, Enfant, Homme, Etats Unis, Amérique du Nord, Amérique, Epidémiologie
Mots-clés Pascal anglais : Sleep, Behavior, Sleep disorder, Cultural aspect, Japan, Asia, Comparative study, Correlation, Child, Human, United States, North America, America, Epidemiology
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0227812
Code Inist : 002B18D10. Création : 16/11/1999.