Improving Dietary Behavior Through Tailored Messages

通过定制信息改善饮食行为

• 批准号: 7415172
• 负责人: ROBERT H FRIEDMAN
• 金额: $ 57.72万
• 依托单位: BOSTON MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7415172
• 关键词: Affect; American Heart Association; Area; Behavior; Behavioral; Boston; Cardiovascular Diseases; Cardiovascular system; Characteristics; Communication; Computers; Consumption; Control Groups; Diet; Dietary Intervention; Digit structure; Dimensions; Disease; Eating; Effectiveness; Effectiveness of Interventions; Evaluation; Fruit; Goals; Health Professional; Health behavior; Health behavior change; Individual; Intake; Internet; Intervention; Investigation; Link; Maintenance; Mediation; Medical center; Modality; Modeling; Online Systems; Outcome; Pamphlets; Pathway interactions; Patients; Perception; Persons; Population; Prevalence; Printing; Public Health; Randomized; Randomized Clinical Trials; Recruitment Activity; Research; Research Personnel; Rhode Island; Sampling; Schools; Secondary Prevention; Severities; Structure; Study Subject; System; Technology; Telecommunications; Telephone; Testing; Text; Time; Universities; arm; base; behavior change; cardiovascular disorder risk; communication theory; comparative efficacy; cost; design; follow-up; fruits and vegetables; improved; instrument; intervention effect; nutrition; population based; programs; saturated fat; smoking cessation; sound; theories; therapy design

DESCRIPTION (provided by applicant): Health behavior change interventions delivered over the Internet or other computer-based channels of communication are increasingly available. Recent evaluations of some interventions that use these channels indicate that they have the potential of combining the low cost and reach of public health interventions and the effectiveness of interventions delivered by health professionals. Yet few Internet and other computer-based interventions have been rigorously evaluated, and no studies have compared the efficacy of interventions delivered over different technology-based communication channels. We plan to conduct a study (1) to determine the competitive advantage of different automated communication channels for delivering a standardized dietary behavior change intervention for reducing cardiovascular disease risk and (2) to advance understanding about behavior theory constructs and communication channel characteristics that might be associated with intervention utilization and efficacy. To do so, we will compare totally automated, population-based tailored (1) print, (2) telephony, and (3) Web interventions for promoting dietary behavior change. These interventions will use the same behavioral theoretical structure (the Transtheoretical Model) and similar content, designed to reduce cardiovascular disease risk by promoting intake of fruit and vegetables and reducing consumption of saturated fat. Each of these three interventions have been shown to be efficacious compared to no intervention control conditions in randomized clinical trials. We will recruit 2,240 study subjects with high saturated fat and low fruit and vegetable intake from a list- assisted national random digit dial sample. They will be randomly assigned to four study groups (560 per group): (1) control (which will receive an informational booklet on healthy eating), (2) tailored print (PRINT- DIET), (3) tailored telephony (Telephone Linked Communication [TLC-DIET]), and (4) tailored Web (WEB- DIET). For each study subject, the intervention period will be 12 months, followed by a 12-month observation period to assess maintenance of intervention effects. For this study, we will develop a new instrument to assess the users' evaluation of the effectiveness of the channel of communications used by the intervention they received (print, telephony or Web). The instrument will focus on eight communication dimensions identified by Salmon and Atkin (2003). We will evaluate each of the three interventions compared to the control condition and to each other regarding their effects on the two dietary outcomes at 12 and 24 months follow-up. We will also investigate whether specific constructs from behavior change and communications theories explain use of the three interventions and their effects on dietary behavior outcomes.

描述（由申请人提供）：越来越多地使用通过Internet或其他基于计算机的通信渠道提供的健康行为改变干预措施。对使用这些渠道的某些干预措施的最新评估表明，它们有可能结合公共卫生干预措施的低成本和覆盖范围以及卫生专业人员提供的干预措施的有效性。然而，很少对Internet和其他基于计算机的干预措施进行严格评估，并且没有研究比较在不同基于技术的通信渠道上提供的干预措施的功效。我们计划进行一项研究（1），以确定不同自动沟通渠道的竞争优势，以提供标准化的饮食行为变化干预措施，以降低心血管疾病风险和（2），以提高对行为理论结构和沟通渠道特征的理解，这些特征可能与干预利用和有效性有关。为此，我们将比较完全自动化的，基于人群的量身定制的（1）印刷，（2）电话和（3）促进饮食行为改变的网络干预措施。这些干预措施将使用相同的行为理论结构（跨理论模型）和类似的内容，旨在通过促进果实和蔬菜的摄入并减少饱和脂肪的消耗来降低心血管疾病的风险。与随机临床试验中的无干预控制条件相比，这三种干预措施中的每一种都有效。我们将从列表辅助国家随机数字拨盘样本中招募2,240名研究对象，饱和脂肪，水果和蔬菜摄入量高。它们将被随机分配给四个研究小组（每组560个）：（1）控制（将获得有关健康饮食的信息手册），（2）量身定制的印刷品（印刷饮食），（3）量身定制的电话（电话链接的通信[TLC-DIET]）和（4）量身定制的Web（Web-Diet）。对于每个研究主题，干预期将为12个月，然后进行12个月的观察期，以评估干预效果的维持。对于本研究，我们将开发一种新工具，以评估用户对所收到的干预措施（印刷，电话或网络）使用的通信渠道的有效性的评估。该仪器将重点关注Salmon和Atkin（2003）确定的八个通信维度。与对照条件相比，我们将评估三种干预措施中的每一个，彼此之间对它们对12和24个月随访的两种饮食结果的影响。我们还将研究行为变化和通信理论的特定结构是否解释了三种干预措施的使用及其对饮食行为结果的影响。