Differential impacts of water insecurity on diet and body composition throughout the life course

水不安全对整个生命过程中饮食和身体成分的不同影响

• 批准号: 10749236
• 负责人: Joshua D Miller
• 金额: $ 3.95万
• 依托单位: UNIV OF NORTH CAROLINA CHAPEL HILL
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10749236
• 关键词: Address; Adolescence; Adolescent; Adult; Affect; Age; Agriculture; Body Composition; Body fat; Body mass index; Breast Feeding; Caregivers; Child; Childhood; Cohort Studies; Communicable Diseases; Complement; Consumption; Data; Development; Diet; Dimensions; Discipline; Disease; Eating; Ecuador; Educational Curriculum; Environment; Epidemiologic Methods; Epidemiology; Equation; Exposure to; Family; Focus Groups; Food; Food production; Future; Gastrointestinal Diseases; Growth; Health; Health Surveys; Home; Household; Income; Individual; Infant; Intake; Interview; Island; Knowledge; Life Cycle Stages; Malnutrition; Measures; Mentorship; Methods; Modeling; Nutrient; Nutrition Surveys; Nutritional; Obesity; Overweight; Pathway interactions; Personal Satisfaction; Philippines; Physical activity; Preparation; Procedures; Process; Production; Public Health; Reporting; Research; Research Personnel; Resources; Risk; Role; Safety; Secure; Site; Structure; Surveys; Systems Biology; Techniques; Time; Unhealthy Diet; United States; Water; Weight Gain; Work; career; comparative; cooking; dietary; dietary guidelines; early childhood; enteric pathogen; experience; food environment; food insecurity; food preparation; improved; indexing; infancy; innovation; lens; multilevel analysis; nutrition; skills; sugar; sweetened beverage; water quality; waterborne pathogen; well water

PROJECT SUMMARY/ABSTRACT Unreliable access to safe and sufficient water for all household uses (i.e., water insecurity) is a common but understudied public health issue. Although water is itself a critical nutrient that is essential for agricultural production, food preparation, and hygienic practices that reduce exposure to enteric pathogens, few studies have examined the role of water insecurity in nutrition; most consider water quality only. A more holistic conceptualization of water insecurity could reveal important pathways by which water accessibility, reliability, and adequacy impact diet and health. Water insecurity presents substantial barriers to cooking nutrient-dense foods, which often require considerable water to be made palatable and safe for consumption. Qualitative studies have reported that water insecurity limits breastfeeding duration and undermines the ability of caregivers to prepare preferred complementary foods. Individuals experiencing water insecurity are also more likely to substitute water with sugar-sweetened beverages, plausibly contributing to weight gain and increased risk of overweight and obesity. The proposed project seeks to expand upon this formative work by examining the extent to which differential exposure to water insecurity impacts diet quality and body composition throughout the life course. A mixed-methods approach is required to comprehensively understand how water insecurity manifests at the household level and subsequently impacts nutritional well-being. The proposed project will therefore use qualitative data to complement quantitative data from 2 existing cohort studies that comprehensively measured water insecurity and diet among infants, children, adolescents, and adults on San Cristóbal Island, Ecuador and in Cebu, Philippines. Specifically, the project aims to qualitatively describe how issues with water availability, accessibility, and use impact food production, purchase, and preparation (Aim 1). Multi-level modeling will be used to assess whether household water insecurity undermines child diet quality (Aim 2) and longitudinal structural equation modeling will be applied to evaluate how changes in household water insecurity throughout early development impact adiposity (Aim 3). The project will address a recognized knowledge gap within the field by using advanced statistical procedures to model water insecurity as a multidimensional, time-varying exposure. Findings from this work have the potential to reveal new targets for addressing the growing burden of malnutrition. Additionally, the proposed rigorous curriculum in nutrition and epidemiology, as well as mentorship from thought leaders in the water and nutrition sectors, will prepare the applicant for an academic career in global nutrition.

项目概要/摘要 所有家庭无法可靠地获得安全和充足的水（即水不安全）是一个常见问题，但 未充分研究公共卫生问题。尽管水本身是农业必需的重要营养素 减少接触肠道病原体的生产、食品准备和卫生习惯，很少有研究 研究了水不安全对营养的影响；大多数人只考虑水质。更全面的 水不安全的概念化可以揭示水的可及性、可靠性、 充足性会影响饮食和健康。 水不安全给烹饪营养丰富的食物带来了巨大障碍，而这通常需要 大量的水变得可口且安全饮用。定性研究报告称，水 不安全感限制了母乳喂养的持续时间，并削弱了护理人员准备首选母乳喂养的能力。 补充食品。经历水不安全的个人也更有可能用 含糖饮料可能会导致体重增加并增加超重和肥胖的风险。 拟议的项目旨在通过检查差异的程度来扩展这项形成性工作。 水不安全会影响整个生命过程中的饮食质量和身体成分。 需要采用混合方法来全面了解水不安全在各地区的表现 家庭水平，进而影响营养健康。因此，拟议的项目将使用 定性数据补充了两项现有队列研究的定量数据，这些研究全面测量了 厄瓜多尔圣克里斯托瓦尔岛婴儿、儿童、青少年和成人的水不安全和饮食 在菲律宾宿务。具体来说，该项目旨在定性描述水资源供应问题如何、 可及性和使用影响粮食生产、购买和准备（目标 1）。多层次建模将 用于评估家庭用水不安全是否会损害儿童饮食质量（目标 2）和纵向 将应用结构方程模型来评估整个家庭用水不安全状况的变化 早期发育影响肥胖（目标 3）。 该项目将通过使用先进的统计程序来解决该领域内公认的知识差距 将水不安全建模为多维、随时间变化的风险。这项工作的结果有 揭示解决日益严重的营养不良负担的新目标的潜力。此外，拟议的 严格的营养和流行病学课程，以及水和流行病学领域思想领袖的指导 营养部门，将为申请人在全球营养领域的学术生涯做好准备。