Department of Health Promotion and Behavior, College of Public Health, University of Georgia, Athens, GA 30602, USA.
J Occup Environ Med. 2011 Mar;53(3):245-52. doi: 10.1097/JOM.0b013e31820c9023.
To evaluate the comparative effectiveness of environmental weight loss interventions alone versus in combination with an individual intervention.
A quasi-experimental design compared outcomes for two levels of environmental interventions and for participants who did or did not simultaneously self-select into an individually focused weight loss intervention (YW8). Analysis of covariance and logistic regression techniques were used to examine risk outcomes.
Employees who participated in YW8 were no more successful at losing weight than those exposed to only the environmental interventions. Approximately, 13.5% of each group lost at least 5% of their body weight; overall changes in mean body weight and body mass index were negligible in both groups.
Simple worksite environmental modifications may help with weight maintenance, but are not likely to result in substantial weight reductions even when combined with low-intensity individual interventions.
评估单独实施环境减重干预与联合实施个体干预的效果比较。
采用准实验设计，比较两种环境干预水平和同时自主选择个体减重干预（YW8）的参与者的结果。协方差分析和逻辑回归技术用于检验风险结果。
参与 YW8 的员工在减重方面并不比仅接受环境干预的员工更成功。每组约有 13.5%的人减重至少 5%；两组的平均体重和体重指数的总体变化都可以忽略不计。
简单的工作场所环境改变可能有助于维持体重，但即使与低强度的个体干预相结合，也不太可能导致体重显著减轻。
