Tamers Sara L, Thompson Beti, Cheadle Allen D, Zheng Yingye, Bishop Sonia K, Beresford Shirley A A
Am J Health Promot. 2015 May-Jun;29(5):311-3. doi: 10.4278/ajhp.130709-ARB-352. Epub 2014 Mar 26.
To examine the association between worksite social support and changes in diet, physical activity, and body mass index (BMI).
Cohort analysis of an underlying randomized, controlled weight gain prevention worksite trial: Promoting Activity and Changes in Eating.
The trial occurred in the greater Seattle area.
Baseline and follow-up data were obtained on a nested cohort of employees (n = 958-1078) from 33 small- to medium-sized worksites.
Worksite social support, diet, physical activity, and BMI measures were assessed using a self-reported questionnaire.
To adjust for multilevel data and multiple time points, we used generalized estimating equations and logistic mixed models.
Higher baseline worksite social support was associated with greater changes in fruit and vegetable intake (p = .001; summary food-frequency questions).
This study does not support a conclusive relationship between worksite social support and health behavior change.
探讨工作场所社会支持与饮食、身体活动及体重指数（BMI）变化之间的关联。
对一项潜在的随机对照工作场所预防体重增加试验（促进活动与饮食变化）进行队列分析。
该试验在大西雅图地区进行。
从33个中小型工作场所的员工嵌套队列中获取了基线和随访数据（n = 958 - 1078）。
使用自我报告问卷评估工作场所社会支持、饮食、身体活动和BMI测量指标。
为了调整多层次数据和多个时间点，我们使用了广义估计方程和逻辑混合模型。
较高的基线工作场所社会支持与水果和蔬菜摄入量的更大变化相关（p = .001；综合食物频率问题）。
本研究不支持工作场所社会支持与健康行为改变之间存在确凿关系。
