Development of a Survey to Assess Diet and Activity Environments in the Home

开展评估家庭饮食和活动环境的调查

基本信息

批准号：
7893002
负责人：
Dianne Stanton Ward
金额：
$ 19.64万
依托单位：
UNIV OF NORTH CAROLINA CHAPEL HILL
依托单位国家：
美国
项目类别：
财政年份：
2009
资助国家：
美国
起止时间：
2009-07-13 至 2012-06-30
项目状态：
已结题

项目摘要

DESCRIPTION (provided by applicant): Knowledge of how the home environment affects children's healthy weight is limited by lack of well-developed, comprehensive measures. The objective of this research is to develop HomeSTEAD, the Home Self- administered Tool for Environmental assessment of Activity and Diet, and provide evidence for the reliability of scores and validity of inferences from this instrument. The proposal comes from a group of highly experienced researchers and will build off of a preliminary home assessment instrument developed by the team. The original instrument was administered via telephone interview and initial testing, though promising, identified areas for improvement. The current project includes three aims. Aim 1 consists of developing candidate items for a self-administered measure of home environmental factors hypothesized to impact diet and physical activity behaviors of children (age 3-12 y). Item selection will draw on data from our preliminary instrument, existing items and/or instruments, published literature, and expert opinion. For Aim 2, we will maximize comprehension of items, terms, and definitions in the newly developed HomeSTEAD using one-on- one guided cognitive interviews in a diverse sample of parents (n=60) to insure that our intention for an item agrees with participant interpretation. For Aim 3, we will examine reliability and validity evidence for the new survey by administering the survey to an ethnically diverse sample of families (n=130) with at least one child age 3-12y. A designated parent will complete the survey three times: Time 1- within 48 hours prior to the in- home observation by research staff (validity); Time 2- concurrent with the in-home observation (reliability); and Time 3 - approximately 10 days later (trait stability, reliability). Traditional estimates of reliability and validity (Kappa, ICC, correlation) will be calculated for each item and absolute agreement across trials evaluated using ANOVA. For items not feasible to observe during the home visit (e.g., policies for TV viewing), reliability and validity will be tested through exploratory and confirmatory factor analysis. Successful completion of this project will result in a reliable and valid self-administered survey that can be used by researchers to quantify aspects of the home environment that may influence weight-related behaviors in children. PUBLIC HEALTH RELEVANCE: The role of the environment in the etiology of child obesity has received increased attention. For children, the home is the most proximate and influential environment, providing the context in which eating and activity habits develop. However, understanding the relationship between home environment and diet, activity, and weight, is impaired by a lack of valid and reliable assessment tools. The proposed HomeSTEAD tool will address this gap and help elucidate the relationship between home and child obesity and plan interventions.

描述（由申请人提供）：由于缺乏完善的综合措施，对家庭环境如何影响儿童健康体重的了解有限。本研究的目的是开发 HomeSTEAD，即用于活动和饮食环境评估的家庭自我管理工具，并为该工具的分数可靠性和推论有效性提供证据。该提案来自一群经验丰富的研究人员，并将以该团队开发的初步家庭评估工具为基础。最初的工具是通过电话采访和初步测试进行管理的，尽管很有希望，但也确定了需要改进的领域。当前的项目包括三个目标。目标 1 包括开发候选项目，用于对假设影响儿童（3-12 岁）饮食和身体活动行为的家庭环境因素进行自我管理测量。项目选择将利用我们的初步工具、现有项目和/或工具、已发表的文献和专家意见中的数据。对于目标 2，我们将在不同的家长样本 (n=60) 中使用一对一引导认知访谈，最大限度地理解新开发的 HomeSTEAD 中的项目、术语和定义，以确保我们对某项项目的意图与参与者解读。对于目标 3，我们将通过对至少有一名 3-12 岁儿童的不同种族家庭样本 (n=130) 进行调查来检查新调查的可靠性和有效性证据。指定家长将完成三次调查：时间 1- 研究人员在家观察前 48 小时内（有效性）；时间2-与家庭观察同时进行（可靠性）；时间 3 - 大约 10 天后（性状稳定性、可靠性）。传统的可靠性和有效性估计（Kappa、ICC、相关性）将针对每个项目进行计算，并使用方差分析评估的试验之间的绝对一致性。对于家访期间无法观察到的项目（例如电视收看政策），将通过探索性和验证性因素分析来检验信度和效度。该项目的成功完成将产生可靠且有效的自我管理调查，研究人员可以使用该调查来量化可能影响儿童体重相关行为的家庭环境的各个方面。公共卫生相关性：环境在儿童肥胖病因中的作用受到越来越多的关注。对于孩子来说，家是最亲近、最有影响力的环境，为孩子的饮食和活动习惯的养成提供了环境。然而，由于缺乏有效和可靠的评估工具，人们无法理解家庭环境与饮食、活动和体重之间的关系。拟议的 HomeSTEAD 工具将解决这一差距，并帮助阐明家庭和儿童肥胖之间的关系并计划干预措施。