Enhancing Long-Term 5-a-Day Behavior Change in Worksites

加强工作场所每天 5 次的长期行为改变

• 批准号: 7118688
• 负责人: SHIRLEY AA BERESFORD
• 金额: $ 59.18万
• 依托单位: FRED HUTCHINSON CANCER RESEARCH CENTER
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-28 至 2009-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7118688
• 关键词: behavioral /social science research tag; behavioral genetics; biomarker; cancer prevention; clinical research; community health services; diet; employee; fruit; genetic polymorphism; health behavior; health care service evaluation; health services research tag; human subject; longitudinal human study; nutrition aspect of cancer; nutrition related tag; preference; social psychology; social support network; socioenvironment; taste; vegetables; work site

DESCRIPTION (provided by applicant): The long-term goal of this research is to enhance the long- term maintenance of dietary behavior change, specifically the maintenance of increased fruit and vegetable consumption in the working population. This study is a randomized trial to evaluate the effectiveness of a new intervention, based on updated behavioral theories, to continue and maintain the behavior of increased fruit and vegetable (F&V) consumption, and to investigate the individual and worksite processes associated with sustaining and supporting that behavior. The intervention is designed to help the worksites adopt the 5 a Day activities as part of their overall operating procedures, in order to reinforce the maintenance of increased F&V consumption. It features state--of-the-art behavioral strategies at the worksite social environment, organizational and individual levels, to augment the long-term change in fruit and vegetable consumption and to build the capacity of the worksite to sustain 5 a Day activities. Members of the Employee Advisory Board (EAB) will be trained to be the main vehicle for the intervention. The project will help identify factors influencing the initiation and maintenance of behavior change at multiple levels. This project is important because only a limited number of community-based intervention studies have assessed the maintenance of behaviors more than two years after the research supported intervention has ended, and even fewer have actually intervened to sustain the program activities using a theoretical framework. The randomized controlled trial involves 20 current intervention worksites that will be randomized to maintenance intervention or control, and 20 current comparison worksites that will receive the intervention and then also be randomized to maintenance or control. The worksite is the experimental unit, and the primary outcome measure is change at the worksite level in servings of fruits and vegetables, assessed using independent cross-sectional samples of employees at two time points: the new baseline and 24-month follow-up. Biological markers of fruit and vegetable intake will also be assessed in a sub-sample of employees. Fruit and vegetables are important for good health, but the mean intake in the U.S. remains less than the five servings daily recommended by the National Cancer Institute. Worksites are good channels of dietary change and can be considered small communities where social environments can be changed to promote health. Indeed, both the original Seattle 5 a Day worksite program and preliminary results from the current Seattle 5 a Day worksite program successfully increased average daily consumption by employees of fruit and vegetables by about one third of a serving size.

描述（由申请人提供）：这项研究的长期目标是增强饮食行为变化的长期维持，特别是维持劳动人群中水果和蔬菜消费的增加。这项研究是一项随机试验，旨在根据更新的行为理论评估新干预的有效性，以继续并维持增加水果和蔬菜（F＆V）消费的行为，并调查与维持和支持该行为相关的个体和工作场所过程。该干预措施旨在帮助工作人员每天进行5种活动作为其整体操作程序的一部分，以增强维持增加的F＆V消费量。它的特征是在工作场所社会环境，组织和个人层面上的行为策略的状态，以增加水果和蔬菜消费的长期变化，并建立工作场所以维持每天5个活动的能力。员工顾问委员会（EAB）的成员将接受培训，成为干预的主要工具。该项目将有助于确定影响行为变化在多个层面的启动和维护的因素。该项目很重要，因为只有有限数量的基于社区的干预研究已经评估了研究支持干预措施结束两年以上的维护，甚至更少的实际上已经干预了使用理论框架来维持计划活动。随机对照试验涉及将20个当前干预工作人员随机分配给维护干预或控制，而20个将接受干预的当前比较工作人员，然后也将其随机分配给维护或控制。工作场所是实验单元，主要结局指标是在工作地点的水果和蔬菜食品中的变化，并在两个时间点使用独立的员工横断面样本进行了评估：新的基线和24个月的随访。水果和蔬菜摄入的生物标记也将在员工的子样本中进行评估。水果和蔬菜对身体健康很重要，但是美国的平均摄入量仍比国家癌症研究所每天推荐的五份摄入量要少。工作人员是饮食变化的良好渠道，可以被视为可以改变社交环境以促进健康的小社区。的确，西雅图最初的5日工作场所和当前西雅图5日工作场所计划的初步结果成功地将水果和蔬菜员工的平均每日消费增加了大约三分之一。