Association of a Television in the Bedroom With Increased Adiposity Gain in a Nationally Representative Sample of Children and Adolescents
Association of a Television in the Bedroom With Increased Adiposity Gain in a Nationally Representative Sample of Children and Adolescents
复制标题
DOI：
10.1001/jamapediatrics.2013.3921
复制
发表时间：
2014-05-01
期刊：
影响因子：
26.1
通讯作者：
Sargent, James D.
中科院分区：
文献类型：
--
作者：
Gilbert-Diamond, Diane;Li, Zhigang;Sargent, James D.
肥胖影响儿童和青少年的健康。看电视是青少年肥胖的一个公认的危险因素。目前还没有前瞻性研究评估卧室电视是否会增加青少年肥胖的风险。目的：在一项具有全国代表性的美国儿童和青少年样本中，评估卧室电视的存在与独立于电视观看的体重指数（BMI，以体重公斤除以身高米的平方计算）变化之间的潜在关联。设计、环境和参与者我们进行了一项随机数字的前瞻性电话调查，调查对象是来自美国各地的儿童和青少年。参与者包括6522名10至14岁的男孩和女孩，他们通过电话调查了肥胖的媒体危险因素。加权回归在2年和4年的随访中评估肥胖，控制电视和电影观看，视频游戏，父母，年龄，性别，种族或民族，家庭收入和父母教育水平。在卧室有电视的基线报告。在2年和4年的随访中，年龄和性别调整的BMI基于自我报告和父母报告的体重和身高。结果年龄、性别、种族或民族和社会经济地位的分布与美国人口普查估计相似。样本加权方法解释了少数民族和社会经济地位较低的人的辍学率较高。在基线时，59.1%的参与者报告卧室有电视，其中男孩、少数民族和社会经济地位较低的人的比例要高得多。在多变量分析中，在第2年和第4年，卧室有电视分别与体重指数增加0.57 （95% CI, 0.31-0.82）和0.75（0.38-1.12）相关，在第2年至第4年，体重指数增加0.24（0.02-0.45）。结论和相关性除了看电视时间的影响外，卧室有电视与体重增加有关。这种关联可能是由于看电视或睡眠模式被打乱而产生的未被捕捉到的影响。随着卧室电视的高度普及，这一风险因素对美国儿童和青少年的影响是每年870万公斤的超重。
IMPORTANCE Obesity affects health in children and adolescents. Television viewing is an established risk factor for obesity in youth. No prospective study has assessed whether a bedroom television confers an additional risk for obesity in youth.OBJECTIVE To assess the prospective association between the presence of a bedroom television and change in body mass index (BMI; calculated as weight in kilograms divided by height in meters squared), independent of television viewing, in a nationally representative sample of US children and adolescents.DESIGN, SETTING, AND PARTICIPANTS We conducted a random-digit prospective telephone survey that captured children and adolescents from across the United States. Participants included 6522 boys and girls aged 10 to 14 years at baseline who were surveyed via telephone about media risk factors for obesity. Weighted regressions assessed adiposity at 2- and 4-year follow-up, controlling for television and movie viewing, video-game playing, parenting, age, sex, race or ethnicity, household income, and parental educational level.EXPOSURE Report of having a television in the bedroom at baseline.MAIN OUTCOMES AND MEASURES Age-and sex-adjusted BMI based on self-report and parent report of weight and height at 2- and 4-year follow-up.RESULTS Distributions for age, sex, race or ethnicity, and socioeconomic status were similar to census estimates for the US population. Sample weighting methods accounted for higher dropout rates among ethnic minorities and those with lower socioeconomic status. Bedroom televisions were reported by 59.1% of participants at baseline, with boys, ethnic minorities, and those of lower socioeconomic status having significantly higher rates. In multivariate analyses, having a bedroom television was associated with an excess BMI of 0.57 (95% CI, 0.31-0.82) and 0.75 (0.38-1.12) at years 2 and 4, respectively, and a BMI gain of 0.24 (0.02-0.45) from years 2 to 4.CONCLUSIONS AND RELEVANCE Having a bedroom television is associated with weight gain beyond the effect of television viewing time. This association could be the result of uncaptured effects of television viewing or of disrupted sleep patterns. With the high prevalence of bedroom televisions, the effect attributable to this risk factor among US children and adolescents is excess weight of 8.7 million kg/y.