1 Johns Hopkins University School of Medicine, Baltimore, MD, USA.
2 Johns Hopkins Medical Institutions, Baltimore, MD, USA.
Health Educ Behav. 2018 Oct;45(5):808-816. doi: 10.1177/1090198118757985. Epub 2018 Feb 19.
Our objective was to characterize the relationship between public housing residents' diet/exercise habits with similar behaviors among their social network. We conducted a cross-sectional survey of randomly selected households in Baltimore, Maryland, from August 2014 to August 2015. Adult heads of household completed questions on diet, exercise, and perceived habits among network members. Our dependent variables were high added sugar intake (≥39.9 teaspoons/day), high fruit/vegetable intake (≥6.1 servings/day), and being physically active (≥moderately activity). Our network exposures were proportion of members perceived to daily consume (1) sugar-sweetened beverages, (2) sweets, (3) fruits, and (4) vegetables, as well as to weekly exercise (1) vigorously or (2) moderately. We used multivariate logistic regression to examine associations between habits with relevant network exposures. Our sample included 266 adults with mean age of 44.5 years, 86.1% women and 95.5% African American. We found a statistically significant association between study participants' high daily intake of added sugar with perceived network exposure to daily sugar-sweetened beverages (odds ratio [OR] = 1.10, 95% confidence interval [CI] [1.02, 1.20]) and daily sweets (OR = 1.10, 95% CI [1.02, 1.20]). Greater network exposure to weekly vigorous exercise was significantly associated with personally being physically active (OR = 1.15, 95% CI [1.04, 1.28]), but not network exposure to weekly moderate exercise. Among public housing residents, associations exist between individuals' and perceived networks' lifestyle habits of high added sugar foods consumption and vigorous exercise, which may hold promise for future social network interventions.
我们的目标是描述公租房居民的饮食/锻炼习惯与社交网络中类似行为之间的关系。我们于 2014 年 8 月至 2015 年 8 月在马里兰州巴尔的摩市对随机抽取的家庭进行了横断面调查。家庭户主完成了关于饮食、锻炼和网络成员感知习惯的问题。我们的因变量是高添加糖摄入量（≥39.9 茶匙/天）、高水果/蔬菜摄入量（≥6.1 份/天）和身体活跃（≥适度活动）。我们的网络暴露因素是感知到成员每天食用的成员比例（1）加糖饮料、（2）甜食、（3）水果和（4）蔬菜，以及每周运动（1）剧烈或（2）适度。我们使用多变量逻辑回归来检查习惯与相关网络暴露之间的关联。我们的样本包括 266 名平均年龄为 44.5 岁的成年人，其中 86.1%为女性，95.5%为非裔美国人。我们发现研究参与者高糖日摄入量与感知到的网络每日摄入含糖饮料（比值比[OR] = 1.10，95%置信区间[CI] [1.02, 1.20]）和每日甜食（OR = 1.10，95% CI [1.02, 1.20]）之间存在统计学显著关联。每周剧烈运动的网络暴露与个人身体活跃显著相关（OR = 1.15，95% CI [1.04, 1.28]），但每周适度运动的网络暴露没有关联。在公租房居民中，个人和感知网络的生活方式习惯（高添加糖食物消耗和剧烈运动）之间存在关联，这可能为未来的社交网络干预提供希望。
