We evaluated the cross-context validity and equivalence of the US- and Canada-originated Retail Food Environment Index (RFEI) and modified RFEI (mRFEI) against a retail food environment dataset from the indigenous-majority city of Quetzaltenango (Xela), Guatemala. The RFEI/mRFEI failed to identify 77% of retailers and misclassified the healthiness of 42% of the remaining retailers in Xela, inaccurately labeling the city a food swamp. The RFEI/mRFEI are not currently suitable for mapping retail food environments in places like Quetzaltenango. Alternative functional and temporal classifications of retail food environments may provide measures with greater contextual fit, highlighting important cultural considerations for the study of place and dietary health.

中文翻译：

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北美零售食品环境指数在危地马拉遗漏了什么：地方与健康研究的文化考虑因素

我们根据来自危地马拉土著居民占多数的城市克萨尔特南戈 (Xela) 的零售食品环境数据集，评估了源自美国和加拿大的零售食品环境指数 (RFEI) 和修改后的 RFEI (mRFEI) 的跨情境有效性和等效性。RFEI/mRFEI 未能识别 77% 的零售商，并对 Xela 其余 42% 的零售商的健康状况进行了错误分类，错误地将这座城市标记为食品沼泽。RFEI/mRFEI 目前不适合绘制克萨尔特南戈等地的零售食品环境地图。零售食品环境的替代功能和时间分类可能会提供更适合环境的衡量标准，突显场所和饮食健康研究的重要文化考虑因素。