Food Intake Recording Software System: Version 4

描述(由申请人提供)： 多次24小时饮食召回(24hdr)是评估习惯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(而不是相对排名)、膳食和零食消费的细节、一周中的饮食量以及饮食摄入量的其他相关因素(例如食物来源、就餐地点、谁在饮食事件期间)。不幸的是，24hdr方法的广泛使用受到限制，因为注册营养师进行面对面、一对一回忆会议的成本很高，以及昂贵的基于计算机的系统来帮助营养师。目前用于儿童的大多数24hdr方法也受到依赖于食物和食物部分的文字描述而不是图片的限制。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，面向儿童，用于量化水果和蔬菜的摄入量。FIRSSt2的S有希望的结果消除了对营养师的一对一采访和更昂贵的饮食评估软件的需要。 我们已经启动了FIRSSt4的创建。FIRSSt4在很多方面都超越了FIRSSt2，包括9000多张食物的照片，份量越来越大，以及引导孩子们通过体验的动画化身。为了优化FIRSSt4的有效性，有几个问题需要回答：1)儿童将食物归类到所提供的类别中的情况如何？是否存在年龄差异较大的食物分类方案？2)与食物相关的盘子、器皿和食物的屏幕尺寸应该是多少？3)最佳的食物搜索策略是什么？以及4)估计食物比例的最佳方法是什么？这项拨款申请建议做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东西完成FIRSSt4，并验证产生的FIRSSt4计划。 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，其质量将至少达到营养师进行的24小时饮食召回的质量，但每次召回的成本要低得多(因为不需要昂贵的营养师进行召回)。如果有可能进行多天的评估，那么增加使用廉价的饮食评估工具，作为儿童遗传或差异研究的一部分，将是非常宝贵的。

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.