Family structure, time-use and adolescent obesity: A longitudinal study.

家庭结构、时间利用和青少年肥胖：一项纵向研究。

• 批准号: 2108352
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2108352
• 关键词: Family; structure; time; use; adolescent

The overarching aim of this research project is to achieve a better understanding of the relationship of time allocation and everyday activities with adolescent obesity, capitalizing on novel data from the Millennium Cohort Study (MCS). Childhood obesity figures have been increasing rapidly worldwide, especially in resource-rich countries. According to the UK government, approximately one out of three children, aged between 2 and 15 in the UK, are obese. Considering the serious health implications that obese individuals face and the increased government spending for relevant medical treatments, the UK government aims to significantly reduce the number of obese children within the next ten years. However, the precise factors affecting childhood obesity are not yet known, leading policy makers to question which policies will actually have an impact in the long run. This project is located within the ecological systems approach, currently considered the most effective way for predicting factors associated with childhood and adolescent obesity. The dataset that will be used is the Millennium Cohort Study, a multi-disciplinary, nationally representative longitudinal study, following around 19000 children born between 2000 and 2002, currently consisting of 6 waves of data collection. This rich dataset will allow me to examine the role of biological, behavioural, and environmental factors in obesity outcomes. In addition, the longitudinal structure of MCS will allow for an examination of changes and stability of family structure. I believe that a great strength of the MCS for the study of obesity is the recent data collection of time-use diaries. Time diaries are currently the most accurate and reliable data collecting tool to assess time use, shown to minimise measurement error. Unlike survey questionnaires that collect information on a limited number of pre-selected activities, time diaries provide a holistic picture of everyday life, including information on sequence, timing, co-presence of others, and location. The time diaries will therefore allow me to better understand how obesity is associated with different activity profiles and to address interesting research questions such as whether engaging in indoor, outdoor or organised leisure activities is associated with a lower risk of adolescent obesity. Children in MCS were also given an accelerometer; a bracelet monitoring movement that was worn for the same days as the time diary. My study could therefore further benefit from this innovative form of data that provides information on sedentary lifestyles and energy expenditure.This research project aims to produce important academic and methodological insights; it intends to add to the existing literature on children related outcomes in family and childhood studies and to the methodology of time-diary analysis, while also make an informed contribution to public health by suggesting potential ways to reverse rising childhood obesity rates.

该研究项目的总体目标是利用千年队列研究（MCS）的新数据，更好地了解时间分配和日常活动与青少年肥胖的关系。儿童肥胖的数字在世界范围内迅速增加，特别是在资源丰富的国家。根据英国政府的数据，在英国，大约三分之一的2至15岁的儿童肥胖。考虑到肥胖者面临的严重健康问题以及政府在相关医疗方面的支出增加，英国政府的目标是在未来十年内大幅减少肥胖儿童的数量。然而，影响儿童肥胖的确切因素尚不清楚，导致政策制定者质疑哪些政策实际上会产生长期影响。该项目位于生态系统方法内，目前被认为是预测与儿童和青少年肥胖相关因素的最有效方法。将使用的数据集是千年队列研究，一个多学科，全国代表性的纵向研究，以下约19000年至2002年之间出生的儿童，目前包括6波数据收集。这个丰富的数据集将使我能够研究生物，行为和环境因素在肥胖结果中的作用。此外，MCS的纵向结构将允许审查家庭结构的变化和稳定性。我认为MCS在肥胖研究中的一个很大优势是最近收集的时间使用日记数据。时间日记是目前最准确和可靠的数据收集工具，以评估时间的使用，以尽量减少测量误差。与收集有限数量的预先选定的活动信息的调查问卷不同，时间日记提供了日常生活的整体情况，包括关于顺序、时间、他人共同存在和地点的信息。因此，时间日记将使我更好地了解肥胖如何与不同的活动特征相关联，并解决有趣的研究问题，例如从事室内，室外或有组织的休闲活动是否与青少年肥胖的风险降低有关。MCS中的儿童还得到了一个加速度计;一个监测运动的手镯，与时间日记在同一天佩戴。因此，我的研究可以进一步受益于这种创新形式的数据，提供久坐的生活方式和能量消耗的信息。它打算补充家庭和儿童研究中与儿童有关的结果的现有文献，并补充时间日记分析方法，同时也通过提出扭转儿童肥胖率上升的潜在方法，为公共卫生做出知情贡献。