Weight and weight-related behaviors in youth: Influence of the family context

描述（由申请人提供）：超过34%的青少年超重或肥胖。观察性研究表明，家庭行为，如家庭聚餐或父母角色塑造，可能在塑造青少年行为和由此产生的体重状况方面发挥重要作用。然而，研究结果并不一致。家庭系统理论认为，必须在全球家庭背景下理解家庭行为。整体家庭因素，如亲子关系质量或一般家庭功能，影响家庭行为的青少年的经验。因此，这些因素可能是家庭行为和青少年结果之间的关联的潜在强大的修饰符。忽略这些家庭行为发生的家庭背景可以解释不一致的研究结果。我们建议通过进行一项大型队列研究来解决这一根本性差距，以确定特定的全球家庭因素如何影响家庭行为和青少年体重相关结果之间的关联。这项建议的总体目标是研究独立和互动的协会的家庭行为和全球家庭因素与青少年体重和体重相关的行为。为了实现这一目标，我们将使用纵向重复测量数据和新收集的调查数据从今天的成长研究2（GUTS2），一个正在进行的青少年队列研究。我们将把青少年的数据与他们母亲的数据联系起来，他们是护士健康研究2的参与者。这项研究的大规模（n= 10，442），前瞻性设计，健康行为理论的基础，以及母亲和青少年的多层次数据提供了一个无与伦比的机会来研究家庭环境对青少年体重和体重相关行为的影响。这项研究的结果将为有效的以家庭为基础的肥胖预防干预提供急需的基础。 公共卫生相关性：通过研究广泛的家庭行为和全球家庭因素，这项研究的结果将加强我们对家庭环境中的因素如何影响青少年体重和体重相关行为的理解。这些信息将指导制定更有效的以家庭为基础的干预措施，以促进健康的体重相关行为，并预防青少年肥胖。

DESCRIPTION (provided by applicant): Over 34% of adolescents are overweight or obese. Observational research suggests that family behaviors, such as family meals or parental role modeling, may play an important role in shaping adolescent behaviors and resulting weight status. However, results are not consistent across studies. Family systems theory asserts that family behaviors must be understood within the global family context. Global family factors, such as parent-child relationship quality or general family functioning, influence how family behaviors are experienced by the adolescents. Thus these factors may be potentially powerful modifiers of the associations between family behaviors and adolescent outcomes. Omitting the family context within which these family behaviors occur may explain the inconsistent research findings. We propose to address this fundamental gap by conducting a large cohort study to determine how specific global family factors influence associations between family behaviors and adolescent weight-related outcomes. The overall objective of this proposal is to examine independent and interactive associations of family behaviors and global family factors with adolescent weight and with weight-related behaviors. To achieve this objective, we will use longitudinal repeated measures data and newly collected survey data from the Growing Up Today Study 2 (GUTS2), an ongoing cohort study of adolescents. We will link adolescents' data to data from their mothers, who are participants in the Nurses' Health Study 2. The proposed study's large size (n=10,442), prospective design, basis in sound behavior theory, and multi-level data on mothers and adolescents provide an unsurpassed opportunity to study the influence of the family context on adolescent weight and weight-related behaviors. Results of this study will provide a much-needed basis for effective family-based obesity prevention interventions. PUBLIC HEALTH RELEVANCE: By examining a broad range of family behaviors and global family factors, the findings from this study will enhance our understanding of how factors within the family environment influence adolescent weight and weight-related behaviors. This information will guide the development of more effective family-based interventions to promote healthful weight-related behaviors and prevent obesity among adolescents.