Impact of television viewing patterns on fruit and vegetable consumption among adolescents
Impact of television viewing patterns on fruit and vegetable consumption among adolescents
复制标题
DOI：
10.1542/peds.112.6.1321
复制
发表时间：
2003-12-01
期刊：
影响因子：
8
通讯作者：
Gortmaker, SL
中科院分区：
文献类型：
--
作者：
Boynton-Jarrett, R;Thomas, TN;Gortmaker, SL
背景。国家数据表明，儿童和青年在水果和蔬菜摄入量方面没有达到2010年健康人目标。人们假设看电视是造成肥胖的一个因素，因为有证据表明，电视会鼓励人们食用广告做得很好的食品，从而导致人们对水果和蔬菜的替代。在1995年10月至1997年5月的19个月期间，对马萨诸塞州4个社区公立学校的548名不同种族的学生（平均年龄：11.7 +/- 0.8岁）进行了前瞻性研究。我们通过使用线性回归分析来控制潜在的混淆变量和学校内观察的聚类，研究了基线和每天看电视和视频的时间变化（预测变量）与能量调整后的水果和蔬菜摄入量变化之间的关系。在调整了人体测量、人口统计学、饮食变量（包括来自脂肪的基线能量百分比、坐下来吃饭的频率、基线能量调整后的水果和蔬菜摄入量）和身体活动后，每天看电视的时间每增加一个小时，每天的水果和蔬菜摄入量就会减少（- 0.14）。每天看电视的基线时间也与水果和蔬菜摄入量的变化独立相关（- 0.16）。青少年看电视与摄入水果和蔬菜呈负相关。这些关联可能是由于青少年饮食中的水果和蔬菜被电视上大肆宣传的食品所取代。
Background. National data indicate that children and youth do not meet Healthy People 2010 objectives for fruit and vegetable intake. Television viewing is hypothesized as a contributing factor because of its documented role in encouraging consumption of highly advertised foods that may lead to the replacement of fruits and vegetables.Methods. A sample of 548 ethnically diverse students ( average age: 11.7 +/- 0.8 years) from public schools in 4 Massachusetts communities were studied prospectively over a 19- month period from October 1995 to May 1997. We examined the associations between baseline and change in hours of television and video viewing per day ( the predictor variables) and change in energy- adjusted intake of fruits and vegetables by using linear regression analyses to control for potentially confounding variables and the clustering of observations within schools.Findings. For each additional hour of television viewed per day, fruit and vegetable servings per day decreased ( - 0.14) after adjustment for anthropometric, demographic, dietary variables ( including baseline percent energy from fat, sit-down dinner frequency, and baseline energy- adjusted fruit and vegetable intake), and physical activity. Baseline hours of television viewed per day was also independently associated with change in fruit and vegetable servings ( - 0.16).Conclusions. Television viewing is inversely associated with intake of fruit and vegetables among adolescents. These associations may be a result of the replacement of fruits and vegetables in youths' diets by foods highly advertised on television.