Abstract: Objective To test the relationships between television exposure,sleep problems and intellectual development among children aged 18 months. Methods The children aged 18 months who received child health care at Care Department of Maternal and Child Health Care Hospital of Maanshan between July 2013 and April 2014 were recruited as the study participants.The information on socio-demographic factors,screen exposure and sleep and so on was collected.Intellectual development was assessed using developmental screening test for child under six (DST).A total of 1 647 children (843 males and 804 females) were analyzed.Descriptive statistics and Logistic regression were used in analysis. Results After adjusted for gender,only child,parents' age,parents' education and occupation,monthly family income and mutually adjusted for television exposure,sleep problems and regular sleep,television exposure ≥60 minutes (OR=1.89,95%CI:1.11～3.23) and having sleep problems (OR=1.46,95%CI:1.03～2.07) were independently associated with an increased risk for borderline intellectual functioning and intellectual disability. Conclusion Longer television exposure and sleep problems have a negative effect on children's intelligence development.

Key words: television viewing, sleep, borderline intellectual functioning, cognitive development, children

摘要： 目的 探讨电视暴露和睡眠问题与18月龄儿童智能发育的关联。方法 以2013年7月-2014年4月在马鞍山市妇幼保健院儿童保健门诊进行常规体检的18月龄儿童作为研究对象。收集相关的人口统计学信息、屏幕暴露和睡眠情况等。采用“0～6岁儿童智能筛查测验量表”(DST)对儿童的智能进行评估。共获得有效问卷1 647份，其中男童843人、女童804人。使用χ²检验和Logistic回归模型对数据进行分析。结果 调整性别、独生子女、父母年龄、父母文化程度、工作性质、家庭月收入，同时将电视暴露、睡眠问题、入睡有规律纳入回归方程分析，结果显示电视暴露≥60 min和睡眠问题均能独立增加儿童边缘智力及智力低下发生的风险(OR=1.89，95%CI:1.11~3.23;OR=1.46.95%CI:1.03~2.07)。结论 长时间的电视暴露和睡眠问题对儿童智力发育有消极的影响。

关键词: 电视, 睡眠, 边缘智力, 认知发展, 儿童