The associations between TV viewing, food intake, and BMI. A prospective analysis of data from the Longitudinal Study of Australian Children
The associations between TV viewing, food intake, and BMI. A prospective analysis of data from the Longitudinal Study of Australian Children
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DOI：
10.1016/j.appet.2012.09.009
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发表时间：
2012-12-01
期刊：
影响因子：
5.4
通讯作者：
Halse, Christine
中科院分区：
文献类型：
--
作者：
Fuller-Tyszkiewicz, Matthew;Skouteris, Helen;Halse, Christine
目的：尽管有横向证据表明儿童早期看电视和BMI之间存在联系，但对这种关系的纵向探索有限。本研究的目的是探讨电视观看和儿童BMI之间的关系的潜在双向性。第二个目的是评估这种关系是否是介导的dietary intake.Study design：父母的9064名儿童（4724招募在出生时，4340招募在4岁）从纵向研究的澳大利亚儿童（LSAC）完成措施，他们的孩子的饮食摄入量和电视观看习惯在三个等距的时间点，相隔2年。还在每个时间点获得身高和体重的客观测量值以计算BMI。交叉滞后面板分析进行了评估潜在的双向协会之间的电视观看和儿童的BMI，并评估这种关系的饮食摄入量的中介作用。结果：我们的纵向研究结果表明，电视观看和BMI之间的关系是双向的：个人谁看电视更容易增加体重，和个人谁是较重的也更容易看电视。有趣的是，饮食摄入介导的BMI-电视观看关系的年龄较大的儿童，但不是为birth coherent.Conclusions：目前的研究结果表明，久坐不动的行为，特别是当再加上不健康的饮食习惯，构成了一个显着的危险因素，在幼儿期体重过度增加。显然，有必要采取干预措施，帮助父母培养幼儿健康的电视观看和饮食习惯。(C)2012爱思唯尔有限公司版权所有。
Objective: Despite cross-sectional evidence of a link between TV viewing and BMI in early childhood, there has been limited longitudinal exploration of this relationship. The aim of the present study was to explore the potential bi-directionality of the relationship between TV viewing and child BMI. A secondary aim was to evaluate whether this relationship is mediated by dietary intake.Study design: Parents of 9064 children (4724 recruited at birth, 4340 recruited at age 4) from the Longitudinal Study of Australian Children (LSAC) completed measures of their child's dietary intake and TV viewing habits at three equidistant time points, separated by 2 years. Objective measures of height and weight were also obtained at each time point to calculate BMI. Cross-lagged panel analyses were conducted to evaluate potential bi-directional associations between TV viewing and child BMI, and to evaluate mediation effects of dietary intake for this relationship.Results: Our longitudinal findings suggest that the relationship between TV viewing and BMI is bi-directional: Individuals who watch TV are more likely to gain weight, and individuals who are heavier are also more likely to watch TV. Interestingly, dietary intake mediated the BMI-TV viewing relationship for the older children, but not for the birth cohort.Conclusions: Present findings suggest that sedentary behaviours, particularly when coupled with unhealthy dietary habits, constitute a significant risk factor for excessive weight gain in early childhood. Interventions targeted at helping parents to develop healthy TV viewing and eating habits in their young children are clearly warranted. (C) 2012 Elsevier Ltd. All rights reserved.