BEHAVIORAL STRATEGIES TO REDUCE ERROR IN MEASURING DIET

减少饮食测量错误的行为策略

• 批准号: 2149420
• 负责人: DOUGLAS L. TAREN
• 金额: $ 27.3万
• 依托单位: UNIVERSITY OF ARIZONA
• 依托单位国家: 美国
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2149420
• 关键词: adult human (21+); age difference; behavior modification; behavior test; bioenergetics; biomarker; body physical characteristic; culture; data collection methodology /evaluation; dietary constituent; disease /disorder proneness /risk; eating disorders; female; food quality /standard; human subject; longitudinal human study; measurement; mental health epidemiology; nutrient intake activity; psychometrics; questionnaires

The strength of associations between diet and chronic diseases is substantially underestimated due to the error involved in measuring diet. This error is composed of both random error and bias due to cultural, personal and other factors, and is present in both food frequency questionnaires (FFQ) and diet records. We propose a series of studies to improve diet assessment strategies aimed toward correcting the bias as well as random error. This promises to improve the epidemiologic studies and clinical studies using FFQs and diet records that have become the major methods for studying the prevention, management and treatment Of chronic diseases. Phase I (months 1-6) will include a baseline study to establish the direction and amount of bias associated with personal characteristics using doubly labeled water and biomarkers, and focus groups to identify the cultural, personal, and technical issues which affect women's ability to accurately report dietary intake. As part of the baseline study, subjects will complete standard questionnaires including the Marlowe-Crowne, Weinberger Adjustment Inventory, the Eating Disorder Inventory, the Restraint Scale and respond to the Stunkard's silhouettes regarding their body shape, their desired body shape and the range that represents healthy body shapes. Data on several other risk factors for chronic diseases will also be obtained including anthropometric measurements, family and personal history of chronic diseases such as osteoporosis, hypertension, diabetes, cancer and heart disease, cigarette smoking and weight history. In Phase II (months 7-25), we draw upon the focus group results and examine the relationships of various factors to women's reports of dietary intake including: personal variables listed above assessed via questionnaire; usual training vs. training directed toward the acceptability of reporting all foods, frequent eating, and large portion sizes; and written records vs. tape recorded. Phase III (months 26-33) will include three small studies examining variations in the physical layout of FFQs and portion size data bases. Phase IV (months 3442) will be a classic validity study, using the best methodologies from Phases I-III to evaluate how the "new improved" method compares with the original methods for obtaining diet intake data implemented in Phase I, and with doubly labeled water and plasma nutrients. Phase V (months 4348) will be the final analysis of the data and preparation of the final report.

饮食与慢性疾病之间关联的强度是 由于测量所涉及的错误，因此被大大低估了 饮食。此错误由由于随机错误和偏差而组成 文化，个人和其他因素，并且存在于两种食物中 频率问卷（FFQ）和饮食记录。我们提出了一系列 改善旨在纠正饮食评估策略的研究 偏差以及随机误差。这有望改善 使用FFQ和饮食记录的流行病学研究和临床研究 这已成为研究预防的主要方法， 慢性疾病的管理和治疗。 第一阶段（1-6个月）将包括一项基线研究，以建立 与个人特征相关的偏见的方向和数量 使用双重标记的水和生物标志物，并进行焦点小组来识别 影响妇女的文化，个人和技术问题 能够准确报告饮食摄入量的能力。作为基线的一部分 研究，受试者将完成包括 Marlowe-Crowne，Weinberger调整库存，饮食失调障碍 库存，约束量表并回应Stunkard的轮廓 关于他们的身体形状，所需的身体形状和范围 代表健康的身体形状。有关其他几个风险因素的数据 还将获得包括人体测量法的慢性疾病 慢性疾病的测量，家庭和个人历史，例如 骨质疏松症，高血压，糖尿病，癌症和心脏病， 吸烟和体重历史。在第二阶段（7-25个月）中，我们绘制 根据焦点小组的结果并检查各种关系 女性饮食摄入量报告的因素包括：个人 上面列出的变量通过问卷进行了评估；通常的培训与 培训针对报告所有食物的可接受性， 频繁饮食和大型尺寸；和书面记录与磁带 记录。第三阶段（26-33个月）将包括三个小型研究 检查FFQ和部分大小的物理布局的变化 数据库。第四阶段（第3442个月）将是一项经典的有效性研究， 使用I-III阶段的最佳方法来评估如何“新的” 改进的方法与获得饮食的原始方法相比 在第一阶段实施的摄入数据，并带有双重标记的水和 血浆营养素。第五阶段（4348个月）将是对 最终报告的数据和准备。