Are food and drink available in online and physical supermarkets the same? A comparison of product availability, price, price promotions and nutritional information.
Are food and drink available in online and physical supermarkets the same? A comparison of product availability, price, price promotions and nutritional information.
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DOI：
10.1017/s1368980020004346
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发表时间：
2021-04
影响因子：
3.2
通讯作者：
Harrington R
中科院分区：
文献类型：
--
作者：
Bhatnagar P;Scarborough P;Kaur A;Dikmen D;Adhikari V;Harrington R
消费者越来越多地使用网上超市，并将其作为食品环境数据的来源。我们比较了实体超市和网上超市之间食品和饮料产品的产品供应、营养信息、包装前（FOP）标签、价格和价格促销。对于实体店，我们从英国六家超市的食品和饮料随机样本中收集了价格，价格促销，FOP营养标签和营养信息的数据。对于在线商店，我们使用foodDB，这是一个研究数据集，包含在线超市中超过1400万种食品和饮料产品的观察结果。位于英国牛津附近的六家大型超市。295种食品和饮料的一般样品，加上水果和蔬菜以及酒精的加强样品。在一般样本中，85%（95%置信区间，80，90%）的产品在实体店可以与在线产品相匹配。在两种环境中发现的营养信息几乎相同，例如能量的一致性相关系数= 0.995（0.993，0.996）。FOP标签和价格促销的存在在两种设置之间存在差异（科恩的kappa值分别为0.56（0.45，0.66）和0.40（0.26，0.55））。网上和实体超市的价格相似（所有样本的一致性相关系数> 0.9）。这6家零售商的产品供应、营养信息和在线价格是实体店的一个很好的代表。价格促销和FOP标签在两种设置之间有所不同。进一步的研究应调查这是否会影响健康不平等。
Online supermarkets are increasingly used both by consumers and as a source of data on the food environment. We compared product availability, nutritional information, front-of-pack (FOP) labelling, price and price promotions for food and drink products between physical and online supermarkets. For physical stores we collected data on price, price promotions, FOP nutrition labels and nutrition information from a random sample of food and drinks from six UK supermarkets. For online stores we used foodDB, a research-ready dataset of over 14 million observations of food and drink products available in online supermarkets. Six large supermarket stores located near Oxford, United Kingdom. General sample with 295 food and drink products, plus boost samples for both fruit and vegetables, and alcohol. In the general sample, 85% (95% confidence intervals, 80,90%) of products found in physical stores could be matched with an online product. Nutritional information found in the two settings was almost identical e.g. concordance correlation coefficient for energy = 0.995 (0.993,0.996). Presence of FOP labelling and price promotions differed between the two settings (Cohen’s kappa = 0.56 (0.45, 0.66) and 0.40 (0.26, 0.55) respectively). Prices were similar between online and physical supermarkets (concordance correlation coefficient > 0.9 for all samples). Product availability, nutritional information and prices sourced online for these 6 retailers is a good proxy of that found in physical stores. Price promotions and FOP labelling varies between the two settings. Further research should investigate whether this could impact on health inequalities.