Project EAT-IV: Eating and Activity in Adolescents and Young Adults

描述(由申请者提供)：不良饮食行为、身体活动不足和肥胖是美国年轻人和成年人面临的一些最紧迫的公共卫生问题。其他与体重有关的问题，包括不健康的体重控制做法和身体不满，也令人担忧，因为它们会对健康造成不利影响。需要关于这些问题随时间推移的轨迹、其代代相传以及风险和保护因素的信息，以指导公共卫生干预。这项拟议的纵向研究名为Eat-IV项目(青少年和青年中的饮食和活动)，建立在之前的研究浪潮的基础上，在10年的时间里收集了青春期不同阶段和青春期初现阶段的不同人群队列的数据。EAT-IV项目将把研究参与者的随访延长到15年(1999-2014年)，从青春期(12-18岁)到青壮年(27-33岁)。数据将从代表不同民族/种族和社会经济背景的大约2250名年轻人中收集，他们参与了之前的研究浪潮。此外，第一次：1)数据将从参与者的重要其他人那里收集(如果适用)(预计n� 3)参与者的青春期前(9-11岁)和青春期(12-18岁)的孩子(预期为�340)将被招募到研究中，并询问他们的饮食行为、体力活动和与体重相关的问题。这项研究的主要目的是纵向检查饮食行为、活动模式和与体重相关的问题，以及这些结果的个人和社会环境预测因素，从青春期到成年期和跨越几代人。主要研究问题包括：1.从青春期开始到成年后的15年间(1999-2014)，不同样本的饮食行为、体力活动模式和与体重相关的问题是如何追踪的？在从青春期到青春期的整个生命过程中，哪些个人水平和社会环境因素预测了年轻人的这些结果，并影响了他们随着时间的推移而变化的轨迹？2.青春期的饮食行为、身体活动模式和与体重相关的问题，以及青春期的相关个人水平和社会环境因素，如何预测年轻人的饮食、活动和体重方面的育儿实践？这对他们的孩子、下一代年轻人有什么影响？在年轻的成年期，哪些因素改变了这些联系的强度？将使用创新和纵向研究战略解决与肥胖和其他与体重有关的问题有关的重要和及时的问题，这些问题涉及整个生命过程中的关键发展转变。调查结果将被广泛传播，以指导制定干预措施、做法和政策，以改善年轻人及其子女与体重相关的健康。

DESCRIPTION (provided by applicant): Poor eating behaviors, inadequate physical activity, and obesity are some of the most pressing public health problems facing youth and adults in the United States. Other weight-related problems, including unhealthy weight control practices and body dissatisfaction, are also of concern given their adverse health consequences. Information on trajectories of these problems over time, their transmission from one generation to the next, and risk and protective factors, is needed to guide public health interventions. The proposed longitudinal study, Project EAT-IV (Eating and Activity in Teens and Young Adults), builds on previous study waves in which data were collected over a 10-year period on a diverse population-based cohort throughout different stages of adolescence and into emerging young adulthood. Project EAT-IV will extend the follow-up of study participants to a 15-year period (1999-2014), from adolescence (ages 12-18) to young adulthood (ages 27-33). Data will be collected from approximately 2250 young adults representing diverse ethnic/racial and socioeconomic backgrounds, who participated in previous study waves. Additionally, for the first time: 1) data will be collected from participants' significant others when applicable (expected n � 1100); 2) parenting practices will be assessed among participants who have children (expected n � 1240); and 3) preadolescent (ages 9-11) and adolescent (ages 12-18) children of participants (expected n � 340) will be recruited into the study and asked about their eating behaviors, physical activity, and weight-related problems. The main study aim is to longitudinally examine eating behaviors, activity patterns, and weight-related problems, along with individual and socio-environmental predictors of these outcomes, over the life course from adolescence to young adulthood and across generations. Key research questions include: 1. How do eating behaviors, physical activity patterns, and weight-related problems track over a 15-year period (1999-2014) in a diverse sample, beginning in adolescence and continuing through young adulthood? What individual-level and socio-environmental factors, throughout the life course from adolescence to young adulthood, predict these outcomes in young adults and influence their trajectories over time? 2. How do eating behaviors, physical activity patterns, and weight-related problems during adolescence, and relevant individual-level and socio-environmental factors in adolescence, predict young adults' parenting practices regarding eating, activity, and weight? What are the implications for their children, the next generation of youth? What factors in young adulthood modify the strength of these associations? Important and timely questions related to obesity and other weight-related problems across key developmental transitions throughout the life course will be addressed using innovative and longitudinal research strategies. Findings will be widely disseminated to guide the development of interventions, practices, and policies to improve the weight-related health of young adults and their children.