Teen screen diets and their relationships with dietary intake: setting the stage for precision interventions and evidence-based policies

青少年筛查饮食及其与饮食摄入的关系：为精准干预和循证政策奠定基础

• 批准号: 10718906
• 负责人: Nicholas Haber
• 金额: $ 77.2万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-17 至 2027-05-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10718906
• 关键词: 17 year old; Address; Adolescent; Adult; Age; Behavior; Behavior Therapy; Beverages; Cellular Phone; Consumption; Data; Data Collection; Development; Devices; Diet; Dietary Intervention; Dietary intake; Eating Behavior; Environment; Exposure to; Female; Food; Foundations; Health; Hour; Image; In Situ; Individual; Intervention; Interview; Life; Life Experience; Machine Learning; Measures; Methods; Modeling; Modernization; Natural experiment; Nutrition Policy; Nutritional; Nutritional Study; Persons; Policies; Preparation; Printing; Research; Research Personnel; Sampling; Series; Structure; System; Teenagers; Television; Text; Time; Variant; adolescent health; analytical method; behavior influence; computerized tools; data pipeline; dietary; digital; encryption; ethnic minority; evidence base; experience; food environment; human subject; improved; male; movie; novel; nutrition; personalized intervention; precision nutrition; preference; racial minority; temporal measurement; theories

Adolescents’ eating behaviors are influenced by their media environments. However, very little is known about the food and beverage-related environment that adolescents experience on their smartphones. Adolescents increasingly interact with the world through smartphone screens that are almost always with them. Thus, any attempt to study or change policy, systems and environmental influences on adolescents’ food and beverage preferences, purchases and consumption must consider the nutrition- related environment and behavior on their smartphone screens. Until now, a comprehensive view of life experienced on smartphones has been invisible to researchers. We have developed a novel method for capturing everything that appears on teens’ smartphone screens – a fully encrypted record of digital life – by taking snapshots of the screen every 5 seconds the devices are on. The resulting sequence of screenshots, including all words and images on the screen, constitute an individual’s screenome. We will collect six months of continuous smartphone screenshots and three 24-hour dietary recall interviews at baseline and after 2, 4, and 6 months, from a national sample of 300 adolescents age 13- 17 years, balanced between female and male, and at least 30% identified as racial/ethnic minority. Aim 1. Describe the food and beverage environment adolescents experience on their smartphone screens Using the text and images from smartphone screenomes, we will create the first comprehensive description of the food and beverage environments being experienced by adolescents on their smartphones. Aim 2. Elucidate the between-person relationships between smartphone food and beverage screenomes and dietary intake. we will examine how differences in digital exposures to food and beverage screenome features are associated with differences in dietary consumption. Aim 3. Elucidate the within-person relationships between changes in smartphone food and beverage screenomes and changes in dietary intakes. Leveraging natural experiments embedded in the screenome data. This study will provide the first comprehensive description of the food and beverage environment that adolescents experience on their smartphones and represents a true paradigm shift in studying media impacts on adolescents’ eating behaviors. The results of this study will identify novel intervention targets and opportunities for smartphone-based precision nutrition interventions and evidence-based policies to improve adolescents’ health.

青少年的饮食行为受到媒体环境的影响，但我们知之甚少。 关于青少年在智能手机上体验的与食品和饮料相关的环境。 青少年越来越多地通过智能手机屏幕与世界互动，这些屏幕几乎总是与 因此，任何研究或改变政策、制度和环境的尝试都会对他们产生影响。 青少年的食品和饮料偏好、购买和消费必须考虑营养 到目前为止，他们在智能手机屏幕上看到了相关的环境和行为。 研究人员已经开发出一种新颖的方法来获取智能手机上的经验。 捕捉青少年智能手机屏幕上出现的所有内容——数字生活的完全加密记录—— 通过每 5 秒拍摄一次设备打开的屏幕快照生成的序列。 屏幕截图，包括屏幕上的所有文字和图像，构成了个人的屏幕组。 我们将收集六个月的连续智能手机屏幕截图和三个 24 小时饮食回忆 对全国 300 名 13 岁青少年样本进行基线访谈、2 个月、4 个月和 6 个月后访谈 17 年，男女比例平衡，至少 30% 被认定为少数族裔/族裔。 目标 1. 描述青少年在智能手机上体验的餐饮环境 屏幕 使用智能手机屏幕组中的文本和图像，我们将创建第一个全面的 描述青少年在他们的生活中所经历的食物和饮料环境 智能手机。 目标 2. 阐明智能手机食品和饮料之间的人与人关系 我们将研究数字暴露与食物的差异。 饮料屏幕组特征与饮食消费的差异相关。 目标 3. 阐明智能手机食物变化与人与人之间的关系 利用嵌入的自然实验来研究饮料屏幕组和饮食摄入量的变化。 屏幕组数据。 这项研究将首次全面描述食品和饮料环境 青少年在智能手机上的体验代表了媒体研究的真正范式转变 这项研究的结果将确定新的干预目标。 基于智能手机的精准营养干预和循证政策的机会 改善青少年的健康。