Improving Dietary Behavior Through Tailored Messages
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 1,224
- 试验地点
- 1
- 主要终点
- Change in diet from baseline to 6 months, 6 months to 18 months, and baseline to 18 months
研究概览
简要总结
The aim of this study is to compare a Web-based system and a computer telephone system to determine their effectiveness in improving diet behaviors compared to each other and a control group.
详细描述
The aim of this study is to compare a Web-based system (WEB-DIET) and a computer telephone system (TLC [Telephone Linked Communications]-DIET) for affecting dietary behavior change. These interventions will target the same dietary behaviors (consumption of fat and fruits and vegetables). The behavior change strategies and content will be derived from the same behavior change theory (the Transtheoretical Model [TTM]). A representative sample of ~1200 adults from a large urban area will be recruited through a list-assisted telephone list which will be bought by the University of Rhode Island so that subjects can be randomized into one of three groups: a Web-based system (WEB- DIET), a computer telephone system (TLC [Telephone Linked Communications]-DIET), or assessment only control. The study hypotheses, which will be evaluated both at the end of the 6-month intervention period and at the end of 18-month follow-up (post-baseline) observation period, are: 1. TLC-DIET> Control 2. WEB-DIET> Control 3. WEB-DIET> TLC-DIET.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •18 years of age or older
- •Be at risk with regard to saturated fat
- •Have access to basic computer hardware and software
- •Use the Internet regularly (defined as 1 times per week) and with basic proficiency
- •Read and speak English at a fifth grade level
- •Have access to a telephone and be able to use it independently.
排除标准
- •Prescribed a diet that would conflict with a low saturated fat (e.g., a colectomy diet)
- •Have a serious medical, psychiatric, or cognitive disease that would interfere with participation (e.g., cancer undergoing chemotherapy, psychotic disorder, Alzheimer's disease, etc.)
- •If the individual does not use the Internet at least once a week
研究组 & 干预措施
TLC-Diet
Participants receive diet intervention through automated telephone system: TLC-Diet
干预措施: TLC-Diet (Behavioral)
WEB-Diet
Participants receive diet intervention through web-based system: WEB-Diet
干预措施: WEB-Diet (Behavioral)
Control
Assessment-only control group
干预措施: Assessment-only control (Other)
结局指标
主要结局
Change in diet from baseline to 6 months, 6 months to 18 months, and baseline to 18 months
时间窗: Baseline, 6 months, and 18 months
Self-reported diet questionnaire to measure fat and fruits/vegetables
次要结局
- Change in psychosocial variables from baseline to 6 months, 6 months to 18 months, and baseline to 18 months(Baseline, 6 months, and 18 months)
- Change in diet variables from baseline to 6 months, 6 months to 18 months, and baseline to 18 months(Baseline, 6 months, and 18 months)