Developing and Evaluating Health and Environmental Messages to Improve Diet in Emerging Adults

项目摘要 不健康的饮食和肥胖是心血管疾病（CVD）的主要原因。新兴成年人（18-25岁） 是心血管疾病预防干预的关键目标群体，因为他们的饮食质量较低， 比中年和老年人体重增加更快。此外，成年初显期是 不同的发展阶段，在此期间，终身饮食行为和心血管疾病风险轨迹在很大程度上 确立了习沟通干预措施，特别是那些吸引新兴成年人强烈兴趣的措施， 环境可持续性和个人健康，是一个有前途的，但研究不足的战略， 解决这个年龄段的不健康饮食问题。拟议研究的目标是设计和严格 评估沟通干预，以减少新兴成年人CVD的饮食风险因素。第一 目的是确定特定的饮食替代品，新兴的成年人可以很容易地减少他们的心血管疾病的风险 和饮食环境危害。为了确定这些替代品，我将分析来自 与食品温室综合数据库相关联的国家健康和营养检查调查 气体排放。第二个目标是发展和优化有关这些问题的健康和环境信息， 膳食替代品我将开发候选信息，在定性焦点小组中对其进行预测试，然后使用 随机析因实验与800新兴的成年人，以确定最有效的消息策略。 第三个目标是评估信息传递干预措施对食品购买的健康性的影响。中 纵向随机对照试验，我将分配500新兴的成年人的4个条件之一：对照（没有 消息）、健康、环境或健康+环境消息。参与者将每周模拟五次 在线杂货店中的购物行程，其中显著地显示了他们的分配消息。我会评价 每种信息传递干预措施对购买健康的初始、持续和整体影响，并确定 最有效的信息。这项研究将进一步促进NHLBI的战略目标，预防心血管疾病和NIH 营养研究目标2-6利用行为科学来发起和维持健康饮食。此外，本发明还 这个奖项将帮助我实现我的长期职业目标，成为一名独立的调查员， 有效的、可扩展的心血管疾病预防干预措施。在此K 01的支持下，我将在 我在营养政策方面的专业知识，以填补关键的培训空白：1）食品的心血管疾病和环境影响，2） 沟通干预新兴成人，3）混合方法，和4）先进的分析技术， 纵向研究。我的详细培训计划包括与我的跨学科导师团队在 哈佛TH Chan公共卫生学院，正式课程，实践研究活动和参与 在会议、讲习班和研讨会上。K 01将为我提供专业知识和初步数据 需要成为一个独立的研究人员成功地竞争R 01资金在这一领域。

PROJECT ABSTRACT Unhealthy diet and obesity are major causes of cardiovascular disease (CVD). Emerging adults (ages 18-25) are a crucial group to target with CVD prevention interventions because they have lower dietary quality and experience more rapid weight gain than adults in middle and older adulthood. Moreover, emerging adulthood is distinct developmental period during which lifelong eating behaviors and CVD risk trajectories are largely established. Communication interventions, particularly those appealing to emerging adults’ strong interest in both environmental sustainability and personal health, are a promising but understudied strategy for addressing unhealthy diet in this age group. The goal of the proposed research is to design and rigorously evaluate a communication intervention to reduce dietary risk factors for CVD among emerging adults. The first aim is to identify specific dietary substitutions that emerging adults can readily make to reduce their CVD risk and dietary environmental harms. To identify these substitutions, I will analyze dietary intake data from the National Health and Nutrition Examination Surveys linked to a comprehensive database of foods’ greenhouse gas emissions. The second aim is to develop and optimize health and environmental messages about these dietary substitutions. I will develop candidate messages, pre-test them in qualitative focus groups, then use a randomized factorial experiment with 800 emerging adults to identify the most effective message strategies. The third aim is to evaluate the impact of the messaging interventions on healthfulness of food purchases. In a longitudinal randomized controlled trial, I will assign 500 emerging adults to 1 of 4 conditions: control (no messages), health, environmental, or health + environmental messages. Participants will simulate five weekly shopping trips in an online grocery store with their assigned messages prominently displayed. I will evaluate each messaging interventions’ initial, sustained, and overall impacts on purchase healthfulness and identify the most effective type of message. This research will further NHLBI’s strategic goal of preventing CVD and NIH Nutrition Research Objective 2-6 to leverage behavioral science to initiate and sustain healthy eating. Further, this award will help me achieve my long-term career goal of becoming an independent investigator focused on effective, scalable CVD prevention interventions for emerging adults. With support from this K01, I will build on my expertise in nutrition policy to fill critical training gaps in: 1) the CVD and environmental impacts of food, 2) communication interventions for emerging adults, 3) mixed methods, and 4) advanced analytic techniques for longitudinal studies. My detailed training plan includes tutorials with my interdisciplinary mentorship team at the Harvard TH Chan School of Public Health, formal coursework, hands-on research activities, and participation in conferences, workshops, and seminars. The K01 will provide me with the expertise and preliminary data needed to become an independent researcher successfully competing for R01 funding in this area.