Health Division, Fundación FES Social, Bogota, Colombia.
Int J Behav Nutr Phys Act. 2007 Sep 19;4:41. doi: 10.1186/1479-5868-4-41.
There has been an ongoing discussion about the relationship between time spent watching television and childhood obesity. This debate has special relevance in the Latin American region were the globalization process has increased the availability of screen-based entertainment at home. The aim of this study is to examine the association between television viewing and weight status in Colombian children.
This cross sectional investigation included children aged 5 to12 yrs from the National Nutrition Survey in Colombia (ENSIN 2005). Weight and height were measured in 11,137 children in order to calculate body mass index. Overweight was defined by international standards. Time spent viewing television was determined for these children through parental reports. Multiple logistic regression analyses were conducted for different subgroups and adjusted for potential confounders in order to study the association between television viewing and weight status in this population.
Among the surveyed children, 41.5% viewed television less than two hours/day; 36.8% between two and 3.9 hours/day and 21.7% four or more hours/day. The prevalence of overweight (obesity inclusive) in this population was 11.1%. Children who were classified as excessive television viewers (between two and 3.9 hours/day or 4 or more hours/day) were more likely to be overweight (OR: 1.44 95% CI: 1.41-1.47 and OR: 1.32 95% CI: 1.30-1.34, respectively) than children who reported to watch television less than 2 hours/day. Stratified analyses by age, gender and urbanization levels showed similar results.
Television viewing was positively associated with the presence of overweight in Colombian children. A positive association between urbanization level and television viewing was detected. Considering that the majority of Colombian children lives in densely populated cities and appear to engage in excessive television viewing these findings are of public health relevance for the prevention of childhood obesity.
关于看电视时间与儿童肥胖之间的关系，一直存在着争论。在拉丁美洲地区，全球化进程增加了家庭中基于屏幕的娱乐方式，这使得这场争论具有特殊的意义。本研究旨在探讨哥伦比亚儿童看电视与体重状况之间的关系。
本横断面研究纳入了哥伦比亚国家营养调查（ENSIN 2005）中年龄在 5 至 12 岁的儿童。为了计算体重指数，对 11137 名儿童的体重和身高进行了测量。根据国际标准，超重定义为体重指数大于或等于 25。通过父母报告确定这些儿童看电视的时间。为了研究该人群中看电视与体重状况之间的关系，对不同亚组进行了多变量逻辑回归分析，并对潜在混杂因素进行了调整。
在所调查的儿童中，41.5%每天看电视少于 2 小时；36.8%每天看电视 2 至 3.9 小时；21.7%每天看电视 4 小时或更多。该人群中超重（包括肥胖）的患病率为 11.1%。被归类为过度看电视者（每天看电视 2 至 3.9 小时或 4 小时或更多）的儿童超重的可能性更高（OR：1.44 95%CI：1.41-1.47 和 OR：1.32 95%CI：1.30-1.34），而报告每天看电视少于 2 小时的儿童超重的可能性较低。按年龄、性别和城市化水平进行的分层分析显示出类似的结果。
看电视与哥伦比亚儿童超重呈正相关。城市化水平与看电视之间存在正相关关系。考虑到大多数哥伦比亚儿童生活在人口密集的城市，并且似乎过度看电视，这些发现与预防儿童肥胖的公共卫生有关。
