Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Health Place. 2010 Mar;16(2):175-90. doi: 10.1016/j.healthplace.2009.09.008. Epub 2009 Oct 2.
We completed a systematic search of the epidemiologic literature on built environment and obesity and identified 63 relevant papers, which were then evaluated for the quality of between-study evidence. We were able to classify studies into one of two primary approaches for defining place and corresponding geographic areas of influence: those based on contextual effects derived from shared pre-determined administrative units and those based on individually unique geographic buffers. The 22 contextual papers evaluated 80 relations, 38 of which did not achieve statistical significance. The 15 buffer papers evaluated 40 relations, 24 of which did not achieve statistical significance. There was very little between-study similarity in methods in both types of approaches, which prevented estimation of pooled effects. The great heterogeneity across studies limits what can be learned from this body of evidence.
我们完成了对建筑环境与肥胖相关的流行病学文献的系统检索，共找到 63 篇相关文献，然后对这些文献进行了研究间证据质量评估。我们能够将研究分为两种主要的方法来定义地点和相应的地理影响范围：基于从共享的预定行政单元得出的上下文效应的方法，以及基于个体独特的地理缓冲区的方法。22 篇上下文文献评估了 80 种关系，其中 38 种没有达到统计学意义。15 篇缓冲区文献评估了 40 种关系，其中 24 种没有达到统计学意义。这两种方法的研究之间方法上的相似性非常少，这阻止了对汇总效应的估计。研究之间的巨大异质性限制了从这一证据体系中可以学到的内容。
