Environments, Preferences and Childhood Obesity: Evidence From a Natural Experiment
环境、偏好和儿童肥胖:来自自然实验的证据
基本信息
- 批准号:10092318
- 负责人:
- 金额:$ 1.65万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-02-28 至 2021-03-31
- 项目状态:已结题
- 来源:
- 关键词:13 year oldAddressAdolescentAdolescent obesityAgingAttentionBehaviorBody CompositionBody WeightCharacteristicsChildDataData CollectionDietEnvironmentEthnic OriginExerciseFamilyFundingFutureGenderGoalsHealthHealth behaviorHeterogeneityHome environmentIndividualInterventionJointsLinkLiteratureLocationMeasuresMethodsMilitary PersonnelNatural experimentNeighborhoodsObesityOutcomeParentsPersonsPhasePlayPoliciesPopulationPublic HealthRaceResearch DesignRiskRoleSelf-control as a personality traitSourceSubgroupSurveysTeenagersTimeUnited States National Institutes of HealthVariantWorkbasebehavioral outcomecohortdiet and exerciseexperienceexperimental studyhigh schoolinnovationintergenerationallongitudinal analysisnovelnutritionobesity in childrenobesogenicpolicy implicationpreferencesocioeconomics
项目摘要
PROJECT SUMMARY
Child and adolescent obesity continue to be serious public health challenges of the 21st century. Recently,
the role of the built- and policy (B&P) environments in contributing to diet, activity and BMI has received
significant attention. But, evaluating these relationships is challenging due to concerns about selection and
heterogeneity. Individuals select neighborhoods based on preferences towards health and other factors, which
may bias estimates. Because random assignment is infeasible, experts have called for natural- and quasi-
experimental methods that leverage exogenous variation. Moreover, environments may not affect all
individuals equally and can average out to small or null effects, yielding misleading conclusions. Such
heterogeneity has thus far only been examined by demographic characteristics. However, evidence on
environments’ effects is mixed even within these subgroups, suggesting that other factors may be at work. An
emerging literature suggests that time-and risk (T&R) preferences (e.g. future-orientation and risk-aversion)
may play such a role. T&R preferences vary considerably and have been linked with health behaviors.
Therefore, it is possible that individuals who vary in their future-orientation and risk-aversion are differentially
impacted by the B&P environment. However, to our knowledge, this has not been examined empirically.
Adolescents represent a key subpopulation in which to study these issues; their obesity rates have quadrupled
during the past thirty years, and their T&R preferences, health behaviors, and interactions with the B&P
environment are evolving towards independence, making this a critical time for interventions. Our goal is to
exploit a rare opportunity to estimate the effects of B&P environments on obesogenic
behaviors and outcomes among adolescents while addressing selection and heterogeneity. We
propose to expand our NIH-funded Military Teenagers’ Environment, Exercise, and Nutrition Study (M-
TEENS), which leveraged a natural experiment due to the compulsory (re)location of Army families. M-TEENS
collected up to 3 waves of data on diet, activity and BMI from 1519 12-13 year old children in Army families.
Our proposed extension will collect 2 additional waves of data (2017 & 2018), yielding a 5-year longitudinal
panel with rarely-available exogenous within-child changes in the B&P environment. A novel contribution of
the proposed study is the examination of whether the environment’s effects vary by adolescents’ and their
parents’ T&R preferences. This is a time-sensitive application; our cohort will complete high-school at the
end of the proposed data collection, making their relocations and, therefore environments, less exogenous
thereafter. This study is likely to have a high impact because it addresses a highly significant health issue,
combines a natural experiment study design with longitudinal data, and is highly innovative in its focus on the
role of adolescents’ and parents’ preferences in understanding environments’ effects.
项目摘要
儿童和青少年肥胖仍然是21世纪世纪严重的公共卫生挑战。最近,
建筑和政策(B&P)环境在促进饮食、活动和BMI方面的作用已经得到了
重要的注意。但是,评估这些关系是具有挑战性的,因为考虑到选择和
异质性个人根据对健康和其他因素的偏好选择社区,
可能会影响估计。由于随机分配是不可行的,专家们呼吁自然的和准自然的分配。
利用外源变异的实验方法。此外,环境可能不会影响所有
个体之间的关系是平等的,并且可以平均到小的或零的影响,产生误导性的结论。等
到目前为止,异质性仅通过人口统计特征进行了研究。然而,证据显示,
环境的影响甚至在这些亚组中也是混合的,这表明其他因素可能在起作用。一个
新兴的文献表明,时间和风险(T&R)偏好(例如,未来导向和风险规避)
可以发挥这样的作用。T&R偏好差异很大,并与健康行为有关。
因此,在未来取向和风险规避方面存在差异的个体,
受到B&P环境的影响。然而,据我们所知,这还没有经过实证检验。
青少年是研究这些问题的一个关键亚群;他们的肥胖率已经翻了两番
在过去的三十年里,他们的T&R偏好,健康行为,以及与B&P的互动
环境正在向独立发展,因此现在是采取干预措施的关键时刻。我们的目标是
利用一个难得的机会来估计B&P环境对肥胖的影响,
行为和青少年的结果,同时解决选择和异质性。我们
建议扩大我们的美国国立卫生研究院资助的军事青少年的环境,运动和营养研究(M-
TEENS),由于军队家庭的强制(重新)安置,它利用了一个自然实验。M-TEENS
收集了1519名12-13岁军人家庭儿童的三波饮食、活动和BMI数据。
我们提议的扩展将收集另外两波数据(2017年和2018年),产生5年纵向数据。
在B&P环境中,很少有外源性的儿童内变化。一个新的贡献,
这项拟议中的研究是检查环境的影响是否因青少年的年龄和他们的年龄而异。
父母的T&R偏好这是一个时间敏感的应用程序;我们的队列将完成高中在
结束拟议的数据收集,使其搬迁,从而环境,不那么外生
然后这项研究可能会产生很大的影响,因为它解决了一个非常重要的健康问题,
结合了自然的实验研究设计与纵向数据,并高度创新,其重点是
青少年和父母的偏好在理解环境影响中的作用。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Association of Place With Adolescent Obesity.
地方与青少年肥胖协会。
- DOI:10.1001/jamapediatrics.2023.1329
- 发表时间:2023
- 期刊:
- 影响因子:26.1
- 作者:Datar,Ashlesha;Nicosia,Nancy;Mahler,Amy;Prados,MariaJ;Ghosh-Dastidar,Madhumita
- 通讯作者:Ghosh-Dastidar,Madhumita
Impact of built, social, and economic environments on adolescent obesity and related health behaviors.
建筑、社会和经济环境对青少年肥胖和相关健康行为的影响。
- DOI:10.1002/oby.23682
- 发表时间:2023
- 期刊:
- 影响因子:0
- 作者:Prados,MaríaJ;Nicosia,Nancy;Datar,Ashlesha
- 通讯作者:Datar,Ashlesha
The impact of state policies for school-based BMI/fitness assessments on children's BMI outcomes in rural versus urban schools: Evidence from a natural experiment.
- DOI:10.1016/j.ypmed.2020.106257
- 发表时间:2020-12
- 期刊:
- 影响因子:5.1
- 作者:Nicosia N;Datar A
- 通讯作者:Datar A
Heterogeneity in place effects on health: The case of time preferences and adolescent obesity.
异质性对健康的影响:时间偏好和青少年肥胖的情况。
- DOI:10.1016/j.ehb.2022.101218
- 发表时间:2023
- 期刊:
- 影响因子:2.5
- 作者:Datar,Ashlesha;Nicosia,Nancy;Samek,Anya
- 通讯作者:Samek,Anya
School Food and Beverage Availability and Children's Diet, Purchasing, and Obesity: Evidence From a Natural Experiment.
- DOI:10.1016/j.jadohealth.2020.03.004
- 发表时间:2020-12
- 期刊:
- 影响因子:0
- 作者:Richardson AS;Nicosia N;Ghosh-Dastidar MB;Datar A
- 通讯作者:Datar A
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{{ truncateString('ASHLESHA DATAR', 18)}}的其他基金
Contextual Effects on Cardiometabolic Health: Evidence from a Natural Experiment
对心脏代谢健康的背景影响:来自自然实验的证据
- 批准号:
10116450 - 财政年份:2019
- 资助金额:
$ 1.65万 - 项目类别:
Contextual Effects on Cardiometabolic Health: Evidence from a Natural Experiment
对心脏代谢健康的背景影响:来自自然实验的证据
- 批准号:
9884808 - 财政年份:2019
- 资助金额:
$ 1.65万 - 项目类别:
Contextual Effects on Cardiometabolic Health: Evidence from a Natural Experiment
对心脏代谢健康的背景影响:来自自然实验的证据
- 批准号:
10359119 - 财政年份:2019
- 资助金额:
$ 1.65万 - 项目类别:
The Impact of Improvements in Built- and Social-Environments and Housing on Obesity in Public Housing Residents: Evidence from a Natural Experiment in South Los Angeles
建筑和社会环境以及住房的改善对公共住房居民肥胖的影响:来自南洛杉矶自然实验的证据
- 批准号:
10113560 - 财政年份:2018
- 资助金额:
$ 1.65万 - 项目类别:
Impact of Built, Social, and Housing Environments on Obesity in Low-Income Children
建筑、社会和住房环境对低收入儿童肥胖的影响
- 批准号:
10381657 - 财政年份:2018
- 资助金额:
$ 1.65万 - 项目类别:
The Impact of Improvements in Built- and Social-Environments and Housing on Obesity in Public Housing Residents: Evidence from a Natural Experiment in South Los Angeles
建筑和社会环境以及住房的改善对公共住房居民肥胖的影响:来自南洛杉矶自然实验的证据
- 批准号:
10355480 - 财政年份:2018
- 资助金额:
$ 1.65万 - 项目类别:
Impact of Built, Social, and Housing Environments on Obesity in Low-Income Children
建筑、社会和住房环境对低收入儿童肥胖的影响
- 批准号:
9919327 - 财政年份:2018
- 资助金额:
$ 1.65万 - 项目类别:
Effects of an Early Childhood Intervention on Childhood Obesity
儿童早期干预对儿童肥胖的影响
- 批准号:
10198909 - 财政年份:2017
- 资助金额:
$ 1.65万 - 项目类别:
Environments, Preferences and Childhood Obesity: Evidence From a Natural Experiment
环境、偏好和儿童肥胖:来自自然实验的证据
- 批准号:
9903282 - 财政年份:2017
- 资助金额:
$ 1.65万 - 项目类别:
Environments, Preferences and Childhood Obesity: Evidence From a Natural Experiment
环境、偏好和儿童肥胖:来自自然实验的证据
- 批准号:
9262092 - 财政年份:2017
- 资助金额:
$ 1.65万 - 项目类别:
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