Diet Assessment System for Cancer Control Applications

描述(由申请人提供)：这项建议是为图形食物频率系统(GRAFFS)的第二阶段开发，这是一个全面的系统，用于收集关于饮食行为和食物使用模式的数据，估计营养摄入量，并提供交互式饮食改变干预。Graff正在开发，以改进饮食与癌症研究中的饮食评估，并使其具有成本效益和可行性，将基于全面饮食评估的“量身定制”行为反馈作为临床和基于人群的癌症控制干预措施的组成部分。完整的Graff将：(A)使用图形、触摸屏、食物频率问卷(FFQ)为基础的数据收集方法；(B)生成适合各种临床咨询和研究应用的关于营养摄入量和食物使用模式的报告；以及(C)提供基于理论的互动行为干预，根据受访者的饮食模式和饮食目标量身定做。创新包括：(A)计算机辅助自访技术，将显著提高基于FFQ的膳食评估的质量；(B)系统可定制化，允许灵活地捕捉地区/种族食物模式，使用不同的语言和字体大小，并专注于特定的营养素和食物成分；(C)复杂和有效的方法，用于定制作为互动干预提供的行为反馈。第二阶段的工作将完成数据收集、营养分析和行为干预的系统，随后将进行验证研究，以检验Graff与多次24小时召回的方法间可靠性，并将进行试点研究，以检验Graff促进前列腺癌、结直肠癌和乳腺癌幸存者健康饮食改变的可行性和潜在有效性。这项提议将完成图形食物频率系统(Graff)的开发和初步评估，这是一个全面的系统，用于收集关于饮食行为和食物使用模式的数据，估计营养摄入量，并提供互动的饮食变化干预。Graff正在开发，以改进饮食与癌症研究中的饮食评估，并使其具有成本效益和可行性，将基于全面饮食评估的“量身定制”行为反馈作为临床和基于人群的癌症控制干预措施的组成部分。Graff被设计为一个易于定制的系统，它可以以不同的语言运行，针对特定种族和地区的饮食模式，并提供与各种饮食改变目标相关的行为反馈。

DESCRIPTION (provided by applicant): This proposal is for Phase II development of the Graphical Food Frequency System (GraFFS), a comprehensive system for collecting data on dietary behavior and food use patterns, estimating nutrient intake, and delivering an interactive dietary change intervention. GraFFS is being developed to improve dietary assessment in studies on diet and cancer, and to make it cost-effective and feasible to include "tailored" behavior feedback based on comprehensive dietary assessment as a component of both clinical and population-based cancer control interventions. The complete GraFFS will: (a) use a graphical, touch-screen, food frequency questionnaire (FFQ)-based method for data collection; (b) generate reports on nutrient intake and food use patterns suitable for a variety of clinical counseling and research applications; and (c) deliver a theory-based, interactive behavioral intervention that is tailored to the respondent's dietary patterns and dietary goals. Innovations include: (a) computer-aided self-interview technology that will significantly improve the quality of FFQ-based dietary assessment; (b) system customizability, to allow flexibility to capture regional/ethnic food patterns, use different languages and font sizes, and focus on specific nutrients and food components; and (c) sophisticated and validated methods for tailoring behavioral feedback that is delivered as an interactive intervention. Phase II work will complete the system for data collection, nutrient analysis and behavioral intervention, which will be followed by a validation study to examine the inter-method reliability of GraFFS vs. multiple 24-hour recalls and a pilot study to examine the feasibility and potential efficacy of GraFFS to promote healthful dietary change among survivors of prostate, colorectal, and breast cancers. This proposal will complete the development and preliminary evaluation of the Graphical Food Frequency System (GraFFS), a comprehensive system for collecting data on dietary behavior and food use patterns, estimating nutrient intake, and delivering an interactive dietary change intervention. GraFFS is being developed to improve dietary assessment in studies on diet and cancer, and to make it cost-effective and feasible to include "tailored" behavior feedback based on comprehensive dietary assessment as a component of both clinical and population-based cancer control interventions. GraFFS is designed as an easily customizable system, which can run in different languages, target ethnically- and regionally-specific dietary patterns, and deliver behavior feedback relevant to a variety of dietary change goals.