Television viewing as a cause of increasing obesity among children in the united states, 1986-1990
Television viewing as a cause of increasing obesity among children in the united states, 1986-1990
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DOI：
10.1001/archpedi.1996.02170290022003
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发表时间：
1996-04-01
影响因子：
--
通讯作者：
Dietz, WH
中科院分区：
文献类型：
--
作者：
Gortmaker, SL;Must, A;Dietz, WH
背景和方法：儿童和青少年肥胖的患病率增加，看电视被认为是一个原因。我们研究了1990年看电视的时间与超重患病率之间的关系，以及1986年至1990年期间超重的发病率和缓解率，在1990年，在一个具有全国代表性的队列中，746名年龄在10至15岁之间的年轻人，他们的母亲年龄在25至32岁之间。超重被定义为身体质量指数高于第85百分位数的年龄和gender.Results：我们观察到一个强大的剂量反应之间的关系，超重的患病率在1990年和小时的电视观看。每天看电视超过5小时的青少年超重的几率是每天看电视0到2小时的青少年的4.6倍（95%置信区间，2.2到9.6）。当对既往超重（1986年）、基线母亲超重、社会经济地位、家庭结构、种族和母婴能力倾向测试分数进行调整时，结果相似（比值比，5.3; 95%置信区间，2.3至12.1）。我们还发现，在这4年期间，调整基线协变量后，看电视与超重发生率增加和缓解率降低之间存在显著关系。青少年每天看电视超过5小时的调整后发病几率是每天看电视0 - 2小时的青少年的8.3倍（95%置信区间，2.6 - 26.5）。归因风险的估计表明，超过60%的超重发病率在这一人群中可以链接到多余的电视viewing time.Conclusion：看电视影响青少年超重，减少观看时间可以帮助防止这种日益普遍的慢性健康状况。
Background and Methods: The prevalence of obesity among children and adolescents has increased, and television viewing has been suggested as a cause. We examined the relation between hours of television viewed and the prevalence of overweight in 1990, and the incidence and remission of overweight from 1986 to 1990 in a nationally representative cohort of 746 youths aged 10 to 15 years in 1990 whose mothers were 25 to 32 years old. Overweight was defined as a body mass index higher than the 85th percentile for age and gender.Results: We observed a strong dose-response relationship between the prevalence of overweight in 1990 and hours of television viewed. The odds of being overweight were 4.6 (95% confidence interval, 2.2 to 9.6) times greater for youth watching more than 5 hours of television per day compared with those watching for 0 to 2 hours. When adjustments were made for previous overweight (in 1986), baseline maternal overweight, socioeconomic status, household structure, ethnicity, and maternal and child aptitude test scores, results were similar (odds ratio, 5.3; 95% confidence interval, 2.3 to 12.1). We also found significant relations between television viewing and increased incidence and decreased remission of overweight during this 4-year period, adjusted for baseline covariates. The adjusted odds of incidence were 8.3 (95% confidence interval, 2.6 to 26.5) times greater for youth watching more than 5 hours of television per day compared with those watching for 0 to 2 hours. Estimates of attributable risk indicate that more 60% of overweight incidence in this population can be linked to excess television viewing time.Conclusion: Television viewing affects overweight among youth, and reductions in viewing time could help prevent this increasingly common chronic health condition.