J Health Care Poor Underserved. 2020;31(4):1712-1726. doi: 10.1353/hpu.2020.0128.
High-sodium diets (e.g., fast-food intake, FF) may contribute to increased hyper-tension risk among low-income populations. We examined the association between FF intake and perceived social-network member FF intake among Baltimore public housing residents. We analyzed 2014-2015 cross-sectional data. Our dependent variable was FF intake (eating FF weekly versus not), and our independent variable was perceiving one or more network member eating FF weekly. We used multivariable Poisson regression with robust variance, adjusted for individual and network covariates. The 266 public housing residents had mean age 44.5 years: 86.1% women, 95.5% African American, 56.8% hypertension, and 42.8% who ate FF weekly. Residents were significantly more likely to eat FF weekly if they perceived that their network contained one or more members who consumed FF weekly (relative risk 1.50, 95%CI 1.05-2.14, p=.02). Given the association between personal and social network consumption of FF weekly, further investigation may be warranted of novel social network interventions for dietary behavior change.
高钠饮食（例如，快餐摄入，FF）可能会增加低收入人群患高血压的风险。我们研究了巴尔的摩公共住房居民中快餐摄入和感知社交网络成员快餐摄入之间的关系。我们分析了 2014-2015 年的横断面数据。我们的因变量是快餐摄入（每周吃快餐与不吃快餐），自变量是感知一个或多个网络成员每周吃快餐。我们使用多变量泊松回归模型进行分析，采用稳健方差调整个体和网络协变量。266 名公共住房居民的平均年龄为 44.5 岁：86.1%为女性，95.5%为非裔美国人，56.8%患有高血压，42.8%每周吃快餐。如果居民认为他们的社交网络中存在一个或多个食用快餐的成员，他们每周吃快餐的可能性显著增加（相对风险 1.50，95%CI 1.05-2.14，p=.02）。鉴于个人和社交网络每周食用快餐之间的关联，可能需要进一步研究针对饮食行为改变的新型社交网络干预措施。
