Excessive access to fast-food restaurants (FFRs) in the neighbourhood is thought to be a risk factor for childhood obesity by discouraging healthful dietary behaviours while encouraging the exposure to unhealthful food venues and hence the compensatory intake of unhealthy food option. A literature search was conducted in the PubMed, Web of Science, and Embase for articles published until 1 January 2019 that analysed the association between access to FFRs and weight-related behaviours and outcomes among children aged younger than 18. Sixteen cohort studies and 71 cross-sectional studies conducted in 14 countries were identified. While higher FFR access was not associated with weight-related behaviours (eg, dietary quality score and frequency of food consumption) in most studies, it was commonly associated with more fast-food consumption. Despite that, insignificant results were observed for all meta-analyses conducted by different measures of FFR access in the neighbourhood and weight-related outcomes, although 17 of 39 studies reported positive associations when using overweight/obesity as the outcome. This systematic review and meta-analysis revealed a rather mixed relationship between FFR access and weight-related behaviours/outcomes among children and adolescents.

中文翻译：

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快餐店、不健康饮食和儿童肥胖：系统评价和荟萃分析。

过多地进入附近的快餐店 (FFR) 被认为是儿童肥胖的一个危险因素，因为它会阻碍健康的饮食行为，同时鼓励人们接触不健康的食物场所，从而补偿性地摄入不健康的食物。在 PubMed、Web of Science 和 Embase 中进行了文献检索，以查找截至 2019 年 1 月 1 日发表的文章，这些文章分析了 18 岁以下儿童获得 FFR 与体重相关行为和结果之间的关联。16 项队列研究和 71 项交叉研究- 确定了在 14 个国家进行的截面研究。虽然在大多数研究中较高的 FFR 获取与体重相关行为（例如，饮食质量评分和食物消费频率）无关，但它通常与更多的快餐消费相关。尽管如此，尽管 39 项研究中有 17 项在使用超重/肥胖作为结果时报告了正相关，但通过对邻里 FFR 访问和体重相关结果的不同测量进行的所有荟萃分析都观察到了无意义的结果。这项系统评价和荟萃分析揭示了儿童和青少年 FFR 获取与体重相关行为/结果之间相当复杂的关系。