"Family Members" Weight and Weight Related Behaviors and Adolescent Obesity

简介（由申请人提供）：摘要专家小组、研究人员和美国国立卫生研究院建议检查家庭环境中的多种家庭影响和人际关系，以确定儿童和青少年肥胖的可改变风险和保护因素。本研究的主要目的是研究多个家庭成员的体重和体重相关行为与青少年身体质量指数（BMI） z-score、超重状态、饮食摄入和身体活动之间的关系。本研究将解决与调查和干预家庭环境中可能影响青少年肥胖的因素有关的未回答的方法学问题。(1)首先，在体重和体重相关行为方面，父母对待兄弟姐妹是否相似（或不同）尚不清楚。了解父母对兄弟姐妹的不同对待，将有助于了解是否需要针对家中不同的孩子量身定制肥胖预防干预措施。(2)其次，确定青少年肥胖干预措施的对象很重要；父母双方都应该参与吗？兄弟姐妹应该参与吗？了解哪些家庭成员的体重和体重相关行为与青少年的体重、饮食摄入和身体活动的关系更密切，可能有助于了解哪些家庭成员应该被纳入预防青少年肥胖的干预措施中。(3)第三，关于家庭对青少年肥胖的影响，一个关键的未解决的问题是，包括多个家庭成员的家庭环境报告是否重要。例如，父亲或兄弟姐妹是否在目标儿童或母亲的报告之外提供关于家庭环境的独特信息？拟议的研究将通过使用两项NIH R01研究进行二级数据分析来回答这些重要问题，这两项研究是多层次的、基于人群的研究。这项名为“所有人都在家庭中”的研究将使用来自F-EAT项目（青少年家庭与饮食与活动）和EAT 2010项目（青少年饮食与活动）的数据子集，这些数据将父母/照顾者（监护人、非监护人、继父）联系起来。

DESCRIPTION (provided by applicant): Abstract Expert panels, researchers and the NIH have recommended examining multiple familial influences and interpersonal relationships within the home environment in order to identify modifiable risk and protective factors for child and adolescent obesity. The main aim of the proposed study, all in the Family, is to examine the relationships between multiple family members' weight and weight-related behaviors and adolescents' body mass index (BMI) z-score, overweight status, dietary intake and physical activity. This study will address unanswered methodological questions relevant to investigating and intervening on factors that may influence adolescent obesity within the home environment. (1) First, it is unknown whether parents treat siblings within the home similarly (or differently) n regards to weight and weight-related behaviors. Knowledge about differential treatment of siblings by parents will inform whether obesity prevention interventions need to be tailored to different children within the home. (2) Second, it is important to determine who to include in adolescent obesity interventions; should both parents be included and should siblings be involved? Knowing which family members' weight and weight-related behaviors are more highly associated with adolescents' weight, dietary intake and physical activity may give insight into which family member(s) should be included in interventions to prevent adolescent obesity. (3) Third, a critical unanswered question in regards to familial influences on adolescent obesity is whether it is important to include multiple family members' reports of the home environment. For example, do the father or siblings provide unique information about the home environment above and beyond reports by the target child or the mother? The proposed study will answer these important questions by conducting a secondary data analysis using two NIH R01 studies that are multi-level, population-based studies. The proposed study, All in the Family, will use a subset of data from Project F-EAT (Families and Eating and Activity in Teens) and EAT 2010 (Eating and Activity in Teens), which link parent/caregiver (custodial, non-custodial, step-parent) other caregivers (grandmother, aunt), adolescent child, and sibling data. The overall dataset includes 3,709 ethnically/racially and socio-demographically diverse parents (62% female), 2,793 adolescents (53% female), and a subset of 204 adolescent siblings (57% female).The inclusion of sibling data was not originally planned, nor were analyses regarding siblings addressed in the original study aims for EAT 2010 or F-EAT. Thus, the proposed study will uniquely add to the results from EAT 2010 and F-EAT by analyzing data from siblings to identify dyadic and triadic relationships between family members and examining the association between these relationships with adolescent weight and weight-related outcomes. This rich dataset will allow for the evaluation of a more complex interactive model of the familial dynamics contributing to adolescent weight, dietary intake and physical activity that will directly inform te development of more effective family-based adolescent obesity prevention interventions.