The Longitudinal Influence of Home Disorganization on Children's Sleep Variability

来自少数族裔和低社会经济家庭的儿童超重的风险最大 肥胖(OWOB)和睡眠是风险因素。尽管大多数将睡眠和OWOB联系起来的研究都集中在 睡眠持续时间，新出现的证据表明，睡眠的其他方面(即睡眠的日间变异性) 独立地与更多的肥胖症、不良的情绪调节和较低的生活质量相关 孩子们。由于横断面研究设计，儿童的睡眠可变性不能很好地理解，而且父母或 自我报告的睡眠数据。目前的研究才刚刚开始研究睡眠的多方面性质，但 需要通过纵向设计更好地了解睡眠的可变性，以确定对健康的影响。 此外，家庭环境是儿童睡眠的主要因素，但很少有研究检验这一点 超越单一方面(即睡前例行公事)。家庭杂乱无章(例如，混乱、噪音)与贫穷有关 身心健康。来自低SES家庭的孩子可能更有可能体验到家 与来自高SES家庭的同龄人相比，组织混乱。研究的结果表明， 小学龄儿童的家庭环境和睡眠，许多包括以白人为主的富裕儿童 样本。其中一项研究对来自低社会经济地位家庭的儿童进行了抽样，并使用了一种客观的衡量标准 睡吧。了解家庭混乱及其与睡眠的关系，超越持续时间，在儿童中 少数族裔和低SES家庭有望确定显著的干预目标来改善睡眠， 这可以改善体重状况，缩小健康差距。该项目利用收集到的数据 来自低SES家庭和高SES家庭的1-3年级儿童的纵向队列(N=504)，50% 非裔美国人样本(NIDDK：R01DK116665)和来自低SES的一至三年级儿童的随机对照试验(N=140) 家庭(NIDDK：R01DK120490)随机参加夏令营。家庭杂乱无章是通过 在学年和暑假期间进行为期14天的问卷调查和日常日记。同时，孩子们的睡眠 使用基于腕部的加速度计进行客观评估。主要目的将决定缓和效果。 在家庭混乱和睡眠变异性之间的关联中的社会经济地位和种族/民族。第二个 AIM将确定学年和暑期在家庭混乱方面的差异，以及它们之间的关系 与睡眠变异性有关。家庭环境和个体内睡眠变异性是新出现的相关因素 与OWOB风险有关的儿童肥胖行为的组成部分尚未得到充分研究。这项研究是 更好地了解家庭环境和对潜在干预目标的洞察将具有重要意义 有可能。这项研究是创新的，因为它使用了纵向和随机对照试验设计，采用了客观的测量 睡眠，并前瞻性地评估家庭杂乱和睡眠变异性。这些发现将推动我们的 了解家庭杂乱无章对睡眠的影响超过一般评估的平均持续时间。

Children from racial minority and low socioeconomic (SES) households are at greatest risk for overweight and obesity (OWOB) and sleep is a risk factor. Although most research linking sleep and OWOB has focused on sleep duration, emerging evidence indicates that additional aspects of sleep (i.e., day-to-day variability in sleep) are independently associated with greater adiposity, poor emotional regulation, and lower quality of life in children. Sleep variability is not well understood in children due to cross-sectional study design, and parent- or self-reported sleep data. Current research is only beginning to examine the multifaceted nature of sleep, but a better understanding of sleep variability through longitudinal designs is needed to identify health implications. Further, the home environment is a major contributor to children’s sleep, yet few studies have examined the this beyond a single facet (i.e., bedtime routines). Home disorganization (e.g., chaos, noise) is associated with poor physical and mental health. Children from low SES families may be more likely to experience home disorganization compared to peers from high SES families. Of the studies examining the relationship between home environment and sleep in elementary school-age children, many included predominately white, affluent samples. One of these studies sampled children from low SES households and used an objective measure of sleep. Understanding home disorganization and its relationship to sleep, beyond duration, among children from minority and low SES households holds promise for identifying salient intervention targets to improve sleep, which can lead to improved weight status and reduce health disparities. This project leverages data collected from a longitudinal cohort (N = 504) of 1st - 3rd grade children from low and high SES households, with a 50% African American sample (NIDDK:R01DK116665) and a RCT (N = 140) of 1st - 3rd grade children from low SES households (NIDDK:R01DK120490) randomized to attend summer camp. Home disorganization is assessed via questionnaires and daily diaries for 14 days during the school year and summer. Simultaneously, children’s sleep is objectively assessed with wrist-based accelerometry. The primary aim will determine the moderating effects of SES and race/ethnicity in the association between home disorganization and sleep variability. The secondary aim will identify differences in home disorganization between the school year and summer, and their relationship with sleep variability. The home environment and intraindividual sleep variability are emerging factors associated with the risk of OWOB yet are understudied components of children’s obesogenic behaviors. This study is significant as greater understanding of home environment and insight into potential intervention targets will be possible. This study is innovative as it utilizes a longitudinal and RCT design, employs an objective measure of sleep, and assesses home disorganization and sleep variability prospectively. Findings will advance our understanding of the influence of home disorganization on sleep beyond commonly assessed average duration.