Household Environmental Weight Gain Prevention

肥胖是一种全国性的流行病，被广泛认为是环境起源， 迫切需要解决环境和个人层面对肥胖的影响的预防干预措施。这项研究的主要目的是评估一个家庭层面的体重增加预防干预，包括环境变化和个人层面的行为改变组件。将招募440户家庭，并随机分为两组，为期1年：1）家庭环境体重增加预防计划或2）仅提供一般行为体重控制建议的控制计划。主要结果是家庭水平的体重变化 在为期一年的干预期间。家庭环境体重增加预防方案包括减少通过电视时间限制装置观看电视的机会;减少家庭对高脂肪/高能量预包装食品的供应，减少快餐店的使用频率;增加自称重的频率，为每个家庭提供家庭秤。此外，个人层面的行为改变组件的目标是 具体的饮食和运动行为，配合家庭环境的变化，以促进体重控制。干预计划的形式包括6个月的面对面小组会议，12个月的通讯，6个鼓励电话，并通过电话和电子邮件不断访问干预工作人员。控制组计划包括12个每月通讯，提供一般的体重控制行为建议。 主要结果是在治疗开始后一年测量的家庭水平的体重变化百分比。次要结果是能量摄入、身体活动、电视观看时间和自我称重频率的变化。据推测，干预家庭将获得显着更少的体重在1年的干预期比随机分配到对照组的家庭。

Obesity is a national epidemic that is widely recognized to be environmental in origin, Primary prevention interventions that address both environmental and individual-level influences on obesity are urgently needed. The primary aim of the proposed study is to evaluate a household-level weight-gain prevention intervention that includes both environmental change and individual-level behavior change components. Four hundred forty households will be recruited and randomized to one of two groups for a 1-year period: 1) household environmental weight-gain prevention program or 2) control program that provides only general behavioral weight control recommendations The primary outcome is household-level change in body weight over the 1-year intervention period. The household environmental weight-gain prevention program includes reduced access to television viewing via a television time-limiting device; reduced household availability of high fat/energy prepackaged foods and less frequent fast food restaurant use; and increased frequency of self-weighing with the provision of a home scale to each household. In addition, the individual-level behavioral change component targets specific eating and exercise behaviors that dovetail with the household environmental changes to promote weight control. The intervention program format consists of 6 monthly face-to-face group meetings, 12 monthly newsletters, 6 encouragement telephone calls, and continuous access to intervention staff via telephone and email. The control group program consists of 12 monthly newsletters that provide general behavioral recommendations for weight control. The primary outcome is household-level percent weight change measured one year following the initiation of treatment. Secondary outcomes are changes in energy intake, physical activity, television viewing time, and frequency of self-weighing. It is hypothesized that intervention households will gain significantly less weight over the 1-year intervention period than households randomized to the control group.