Université Libre de Bruxelles, 50 av. F.D. Roosevelt, B-1050, Brussels, Belgium.
University of St. Andrews, The Gateway, North Haugh, St Andrews, Fife, KY16 9RJ, Scotland, UK.
Appetite. 2019 Jan 1;132:208-221. doi: 10.1016/j.appet.2018.07.017. Epub 2018 Sep 12.
A negative association between socioeconomic status (SES) and levels of overweight/obesity is consistently found in high- and middle-income countries. Yet, there is little conclusive evidence about the mechanisms driving this association. In this systematic review, we discuss and compare the results of 22 studies that examine the role of psychosocial mediators in the association between SES and BMI in diverse population samples. These include factors related to resources and constraints in one's external neighborhood, social resources, and psychological factors such as stress. The findings support theoretical models indicating that SES is related to BMI partially through environmental and psychological factors. Importantly, SES often remains a significant predictor of weight status, indicating the importance of also addressing structural antecedents in order to improve health among lower SES populations. We thoroughly discuss the quality and limitations of current study designs and mediation testing and provide recommendations for future research.
在高收入和中等收入国家，社会经济地位（SES）与超重/肥胖水平之间始终存在负相关关系。然而，关于驱动这种关联的机制，几乎没有确凿的证据。在本系统评价中，我们讨论并比较了 22 项研究的结果，这些研究检查了在不同人群样本中 SES 与 BMI 之间关联中的心理社会中介因素的作用。这些因素包括与外部邻里环境中的资源和限制、社会资源以及压力等心理因素相关的因素。研究结果支持了表明 SES 通过环境和心理因素与 BMI 部分相关的理论模型。重要的是，SES 通常仍然是体重状况的重要预测因素，这表明为了改善 SES 较低人群的健康，还需要解决结构性前因。我们彻底讨论了当前研究设计和中介检验的质量和局限性，并为未来的研究提供了建议。
