Television exposure and overweight risk in preschoolers
Television exposure and overweight risk in preschoolers
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DOI：
10.1001/archpedi.160.4.417
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发表时间：
2006-04-01
影响因子：
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通讯作者：
Bradley, RH
中科院分区：
文献类型：
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作者：
Lumeng, JC;Rahnama, S;Bradley, RH
目的：测试学龄前儿童电视接触对超重风险的独立影响。设计：国家儿童健康和人类发展研究所早期儿童保育和青少年发展研究的横断面和纵向分析。地点：美国 10 个地点。参与者：通过条件随机抽样选出的 1,016 名儿童。主要暴露：根据 36 个月大的母亲报告，每天在房间里保持清醒并打开电视 2 小时或更长时间。主要结果指标：儿童超重（体重指数[以公斤为单位的体重除以米为单位的身高的平方计算]>=第95个百分位）根据36个月和54个月时测量的人体测量数据计算得出。测试的协变量包括儿童性别和种族；母亲的婚姻状况、教育程度、年龄和抑郁症状；收入需求比、儿童行为问题；家庭观察环境测量总分；每周接受非父母照顾的时间；结果：36 个月大时，5.8% 的儿童超重； 54 个月大时，10.0% 超重。在未经调整的分析中，每天看 2 小时或以上电视与 36 个月龄（优势比，2.92；95% 置信区间，1.36-6.24）和 54 个月龄（优势比，1.71；95% 置信区间，1.03-2.83）超重风险增加相关。只有母亲年龄改变了并发关系，电视的影响仍然显着（比值比，2.61；95% 置信区间，1.21-5.62）。当控制协变量时，36 个月时的电视接触不再是 54 个月时超重的显着预测因素。 结论：过多的电视接触是学龄前儿童超重的一个危险因素，独立于与家庭环境质量相关的许多潜在混杂因素。
Objective: To test the independent effect of television exposure in preschool-aged children on overweight risk.Design: Cross-sectional and longitudinal analysis of the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development.Setting: Ten US sites.Participants: One thousand sixteen children selected via conditional random sampling.Main Exposure: Being awake in the room with the television on for 2 hours or more per day, by maternal report at age 36 months.Main Outcome Measures: Child overweight ( body mass index [ calculated as weight in kilograms divided by the square of height in meters] >= 95th percentile) calculated from measured anthropometrics at ages 36 and 54 months. Covariates tested included child sex and race; maternal marital status, education, age, and depressive symptoms; income-needs ratio, child behavior problems; Home Observation for Measurement of the Environment total score; hours per week in nonparental care; and proportion of television exposure that was educational.Results: At age 36 months, 5.8% of children were overweight; at age 54 months, 10.0% were overweight. Exposure to 2 or more hours of television per day was associated with an increased risk of overweight at both age 36 months (odds ratio, 2.92; 95% confidence interval, 1.36-6.24) and age 54 months (odds ratio, 1.71; 95% confidence interval, 1.03-2.83) in unadjusted analyses. Only maternal age altered the concurrent relationship, and the effect of television remained significant (odds ratio, 2.61; 95% confidence interval, 1.21-5.62). Television exposure at age 36 months was no longer a significant predictor of overweight at age 54 months when controlling for covariates.Conclusion: Excessive television exposure is a risk factor for overweight in preschoolers independent of a number of potential confounders associated with the quality of the home environment.