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Sleep Med. 2008 Jul;9(5):555-63. Epub 2007 Aug 29.

Bed- and room-sharing in Chinese school-aged children: prevalence and association with sleep behaviors.

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  • 1Shanghai Xin Hua Hospital, Shanghai Children's Medical Center affiliated with Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Children's Environmental Health, Shanghai, People's Republic of China.



To survey the prevalence of bed- and room-sharing and assess associations with sleep/wake patterns, duration of sleep, and sleep problems among urban school-aged children in China.


Students representing eight Chinese cities were studied during November and December, 2005. A total of 19,299 elementary-school children (49.7% boys and 50.3% girls with a mean age of 9.00 years) participated in the survey. A parent-administered questionnaire and the Chinese version of the Children's Sleep Habits Questionnaire were completed to quantify children's sleep arrangements and to characterize sleep behaviors.


Co-sleeping was a common practice, with a prevalence of 37.6% (routine bed-sharing: 23.0%; room-sharing: 14.6%) in Chinese school-aged children. Bed- and room-sharing did not show significant gender difference but gradually decreased with increasing age. Compared to room-sharing and sleeping alone, bed-sharing was correlated with later bedtimes, later awakening times, and a shorter duration of sleep. However, the small difference was unlikely to have clinical significance. Bed- and room-sharing tended to be associated with the increased probability of six types of sleep problems: bedtime resistance, sleep anxiety, night waking, parasomnia, sleep-disordered breathing, and daytime sleepiness. Compared to bed-sharing, room-sharing had a lower odds ratio. Among six sleep problems, bedtime resistance and sleep anxiety had the strongest association with bed-sharing.


Sleep problems were common in Chinese school-aged children. Co-sleeping was highly prevalent and may be potentially associated with negative effects on sleep hygiene and sleep quality, although the context of the co-sleeping must be taken into consideration.

[PubMed - indexed for MEDLINE]
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