Diet Assessment System for Cancer Control Applications

描述（由申请人提供）：本提案用于图形化食物频率系统（GraFFS）的第一阶段开发，这是一个收集饮食行为数据、测量营养摄入和食物使用模式并生成“量身定制”行为反馈的综合系统。目标是改善饮食和癌症研究中的饮食评估，并使其具有成本效益和可行性，将基于综合饮食评估的“量身定制”行为反馈纳入癌症控制干预措施的组成部分。完整的GraFFS将：(a)使用基于图形、触摸屏、食物频率问卷（FFQ）的数据收集方法；(b)就营养摄取和食物使用模式作出报告；(c)产生“量身定制”的行为反馈。创新包括：(a)计算机辅助自我访谈技术，将显著改善基于ffq的饮食评估；(b)系统可定制性，允许灵活地捕捉区域/民族食物模式，使用不同的语言，并专注于特定的营养和食物成分；(c)复杂和有效的方法来剪裁行为反馈。第一阶段的开发包括一个功能齐全的系统，用于数据收集、营养分析和行为反馈，以及一个正式的评估，将GraFFS生成的营养摄入数据与纸质FFQ生成的数据进行比较。

DESCRIPTION (provided by applicant): This proposal is for phase I development of the Graphical Food Frequency System (GraFFS), a comprehensive system for collecting data on dietary behavior, measuring nutrient intake and food use patterns, and generating "tailored" behavioral feedback. The goals are 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 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; and (c) generate "tailored" behavioral feedback. Innovations include: (a) computer-aided self-interview technology that will significantly improve FFQ-based dietary assessment; (b) system customizability, to allow flexibility to capture regional/ethnic food patterns, use different languages, and focus on specific nutrients and food components; and (c) sophisticated and validated methods for tailoring behavioral feedback. Phase I development includes a fully-functional system for data collection, nutrient analysis and a behavioral feedback, and a formal evaluation to compare nutrient intake data generated from the GraFFS to those from a paper-form FFQ. PROPOSED COMMERCIAL APPLICATIONS: There are immediate comercialization possibilities for GraFFS, include both research and clinical applications. Research scientists need improved and flexible FFQ-based dietary assessment. Much larger markets exist for clinical nutritionists, who can use the GraFFS to support dietary evaluation and counseling, and for HMOs, physicians, and helath promotion programs wishing to offer a low-cost, self-help dietary intervention tool.