Childhood obesity is one of the most pressing public health issues nowadays. The environmental factors have been identified as potential risks for obesity, as they may influence people's lifestyle behaviours. Lack of access to supermarkets that usually provide healthy food options has been found to be a risk factor for childhood obesity in several studies. However, findings remained inconclusive. We aimed to systematically review the association between access to supermarkets and childhood obesity. A literature search was conducted in the Cochrane Library, PubMed, Web of Science, and Embase for studies published before 1 January 2019. Twenty-four studies conducted in four countries were identified, from which data on the basic characteristics of studies and participants, measures of access to supermarkets, and associations between access to supermarkets and weight-related behaviours and outcomes were extracted. The median sample size was 1858 participants. Half of the included studies indicated a negative association, one fourth reported a positive association, and the remaining one fourth did not find a significant association. Better designed studies are necessary to achieve a robust understanding of this epidemiological relationship in the future.

中文翻译：

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邻里超市准入和儿童肥胖：系统评价。

儿童肥胖是当今最紧迫的公共卫生问题之一。环境因素已被确定为肥胖的潜在风险，因为它们可能会影响人们的生活方式行为。多项研究发现，无法进入通常提供健康食品选择的超市是儿童肥胖的危险因素。然而，调查结果仍无定论。我们旨在系统地审查进入超市与儿童肥胖之间的关联。在 Cochrane 图书馆、PubMed、Web of Science 和 Embase 中对 2019 年 1 月 1 日之前发表的研究进行了文献检索。 确定了在四个国家进行的 24 项研究，从中确定了关于研究和参与者的基本特征的数据，衡量进入超市，并提取了进入超市与体重相关行为和结果之间的关联。中位数样本量为 1858 名参与者。一半纳入的研究表明负相关，四分之一报告正相关，其余四分之一未发现显着相关。更好的设计研究是必要的，以便在未来深入了解这种流行病学关系。