目的：了解长沙市2～12岁儿童的睡眠时间和睡眠障碍的发生情况，为有针对性的进行干预提供指导。方法：2006年6月~2007年4月,在长沙市5个行政区采用分层随机抽样方法调查3 756名2～12 岁儿童的睡眠情况,由专人负责对其家长进行问卷调查。结果2～12 岁儿童每天平均睡眠时间为10.60 h。从2~12岁共11个年龄组儿童的每天平均睡眠时间分别为12.26，11.57，11.33，11.26，10.95，10.64，10.62，10.45，10.28，9.83和9.61 h。2～12 岁儿童睡眠障碍总发生率为40.9%,其中睡眠时频繁鼾症发生率为8.2%，喉头哽咽1.5%，睡眠呼吸暂停0.8%，睡眠不安7.6%，张口呼吸4.9%，睡眠中多汗22.6%,睡眠中肢体抽动3.2%，磨牙9.5%，梦呓5.5%，梦游0.9%，夜间遗尿2.5%(≥5岁)，不明原因睡眠中觉醒或憋醒1.9%。白天睡得多、夜间清醒者1.5%，入睡过早 2.1%，易惊醒者1.6%，睡眠中出现尖叫、哭喊者1.8%。不同症状的发生率存在性别、年龄差异。结论长沙市2～5岁年龄组儿童睡眠时间略低于儿童保健学要求的同年龄段儿童睡眠时间需求标准，长沙市2～12 岁儿童睡眠障碍发生率较高,高于其他城市的调查水平，需引起儿童保健工作者及儿童父母的重视。

OBJECTIVE: To study the sleep time and the prevalence of sleep disorders in children at ages of 2-12 years in Changsha City. METHODS: A total of 3 756 children at ages of 2-12 years were randomly sampled from five districts of Changsha City from June 2006 to April 2007. A questionnaire survey was performed on their parents.RESULTS: The average daily sleep time in the subjects was 10.60 hrs. The average daily sleep time among different age groups (1 year as a group separation) was different. It was 12.26, 11.57, 11.33, 11.26, 10.95, 10.64, 10.62, 10.45, 10.28, 9.83 and 9.61 hrs respectively in the 11 age groups of 2 to 12 years of age. The prevalence of sleep disorders in children at ages of 2-12 years was 40.9%, including frequent sleep snoring (8.2%), choke/gargling (1.5%), sleep apnea (0.8 %), sleep inquietude (7.6%), mouth breathing (4.9%), hyperhidrosis (22.6%), limbs spasm (3.2 %), sleep teeth grinding (9.5 %), sleep talking (5.5 %), sleep walking (0.9 %), nocturnal enuresis (2.5%), waking up by choke (1.9%), remaining wakefulness in the night due to too much daytime sleep time (1.5%), going to sleep too early (2.1%), night awakenings (1.6%), and screeching or crying during sleep (1.8%). The prevalence of different sleep disorders was different in children between boys and girls and among different age groups. CONCLUSIONS: The average sleep time in children at ages of 2-5 years is less than the reference value recommended by the domestic child health care textbook. There is a higher prevalence rate of sleep disorders in children at ages of 2-12 years in Changsha City than the reported data in other cities.