Food Intake Recording Software System: Version 4

描述（由申请人提供）： 多个24小时饮食回忆（24hdr）是评估习惯性饮食摄入量的首选方法，因为它们提供了：最准确的数据，实际摄入量的估计（相对于相对排名），膳食和零食消费的细节，一周中的消费量以及饮食摄入的其他相关因素（例如食物来源，饮食地点，饮食事件期间在场的人）。不幸的是，24hdr方法的广泛使用是有限的，由于认证的营养师进行面对面的高成本，一对一的回忆会议和昂贵的计算机为基础的系统，以协助营养师。目前大多数用于儿童的24 hdr方法也受到限制，依赖于食物和食物部分的文字描述，而不是图片。FIRSSt2（食物摄入量记录软件系统，第2版）是一种低成本、基于图片的计算机化24hdr系统，针对儿童，仅用于量化水果和蔬菜摄入量。FIRSSt2令人鼓舞的结果消除了对一对一营养师访谈和更昂贵的饮食评估软件的需要。 我们已经开始创建FIRSSt4。FIRSSt4在许多方面都超越了FIRSSt2，包括9000多张食物照片，以及引导儿童体验的动画化身。有几个问题需要回答，以优化FIRSSt4的有效性：1）如何以及儿童分类食物到提供的类别？是否有年龄低于食品分类方案有很大的不同？2)与食品相关的盘子、器皿和食品的屏幕尺寸应该是多少？3)什么是最佳的食物搜索策略？和4）什么是食物分量估计的最佳方法？该拨款申请建议进行四个形成性研究项目来回答这些问题，根据从形成性研究中学到的知识完成FIRSSt4，并验证由此产生的FIRSSt4程序。 公共卫生：FIRSSt4将是一种计算机化的方法，用于对儿童进行24小时饮食召回，其质量至少与营养师进行的24小时饮食召回相同，但每次召回的成本要低得多（由于不需要昂贵的营养师进行召回）。当多天的评估成为可能时，增加使用廉价的饮食评估工具将是非常宝贵的，作为儿童遗传或差异研究的一部分。

DESCRIPTION (provided by applicant): Multiple 24-hour dietary recalls (24hdr) are the preferred method in assessing habitual dietary intake because they provide: the most accurate data, estimates of actual intake (as opposed to relative ranking), details on meal and snack consumption, day-of-week consumption, and other correlates of dietary intake (e.g. source of foods, location of eating, who was present during the eating event). Unfortunately, widespread use of 24hdr methods is limited due to the high cost of certified dietitians performing in-person, one-on-one recall sessions and expensive computer-based systems to assist the dietitians. Most current 24hdr methods used with children are also limited by relying on text descriptions of foods and food portions instead of pictures. FIRSSt2 (Food Intake Recording Software System, version 2) was a low-cost, picture- based, computerized 24hdr system targeted to children for quantifying just fruit and vegetable intake. FIRSSt2's promising results eliminated the need for one-on-one dietitian interviews and more expensive dietary assessment software. We have initiated creation of FIRSSt4. FIRSSt4 advances beyond FIRSSt2 in many ways, including 9000+ photographs of foods in progressively larger portion sizes and animated avatars to guide children through the experience. There are several questions that need to be answered to optimize the effectiveness of FIRSSt4:1) How well do children categorize foods into provided categories? Are there ages below which food categorization schemes substantially differ? 2) What should the screen size be for food related plates, utensils and foods? 3) What is an optimal food search strategy? and 4) What is an optimal approach to food portion estimation? This grant application proposes to do four formative research projects to answer these questions, complete FIRSSt4 based on what was learned from the formative research and validate the resulting FIRSSt4 program. Public Health: FIRSSt4 will be a computerized method for conducting 24 hour dietary recalls with children that will be at least the quality of 24 hour dietary recalls conducted by dietitians, but much lower cost per recall (due to not needing expensive dietitians to conduct the recalls). Increased use of inexpensive dietary assessment tools will be invaluable as part of genetic or disparities research with children, when multiple days of assessment are possible.