To address existing gaps in public health practice, we used data from a 2014 internet panel survey of 954 Los Angeles County adults to investigate the relationships between psychosocial community characteristics (PCCs) and two key chronic disease-related dietary behaviors: fruit and vegetable (F+V) and soda consumption. Negative binomial regression models estimated the associations between ‘neighborhood risks and resources’ and ‘sense of community’ factors for each dietary outcome of interest. While high perceived neighborhood violence (p < 0.001) and perceived community-level collective efficacy (p < 0.001) were associated with higher F+V consumption, no PCCs were directly associated with soda consumption overall. However, moderation analyses by race/ethnicity showed a more varied pattern. High perceived violence was associated with lower F+V consumption among White and Asian/Native Hawaiian/Other Pacific Islander (ANHOPI) groups (p < 0.01). Inadequate park access and walking as the primary mode of transportation to the grocery store were associated with higher soda consumption among the ANHOPI group only (p < 0.05). Study findings suggest that current and future chronic disease prevention efforts should consider how social and psychological dynamics of communities influence dietary behaviors, especially among racially/ethnically diverse groups in urban settings. Intervention design and implementation planning could benefit from and be optimized based on these considerations.

中文翻译：

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在洛杉矶县种族/民族多元化的城市人口中，社会心理社区特征与饮食行为之间有什么关系？

为了解决公共卫生实践中的现有差距，我们使用了 2014 年对 954 名洛杉矶县成年人进行的互联网小组调查的数据来调查社会心理社区特征 (PCC) 与两种关键的慢性病相关饮食行为之间的关系：水果和蔬菜 (F +V) 和苏打水消耗。负二项式回归模型估计了每个感兴趣的饮食结果的“社区风险和资源”与“社区意识”因素之间的关联。而高感知邻里暴力 ( p < 0.001) 和感知社区层面集体效能 ( p< 0.001) 与较高的 F+V 消耗相关，没有 PCC 与总体苏打水消耗直接相关。然而，按种族/民族进行的适度分析显示出更多样的模式。在白人和亚洲/夏威夷原住民/其他太平洋岛民 (ANHOPI) 群体中，高度感知暴力与较低的 F+V 消费相关 ( p < 0.01)。仅在 ANHOPI 组（p< 0.05)。研究结果表明，当前和未来的慢性病预防工作应考虑社区的社会和心理动态如何影响饮食行为，尤其是在城市环境中的种族/民族多元化群体中。干预设计和实施规划可以从这些考虑中受益并基于这些考虑进行优化。