Effect of a relative pricing intervention and active merchandising on snack purchases: interrupted time series analysis of a hospital retailer-led strategy

Table 1 Price, price change, and average weekly purchases of targeted healthier and less healthy snack food and beverage items, during baseline and intervention periods, April 2018 to December 2019

¹Average weekly purchases (quantity n, SD) are rounded to nearest integer and hence differences do not sum; differences in average weekly purchases reported as significant ** between baseline and intervention based on multiple tests with Bonferroni correction, α < 0.05
²Menu items for which generic names are provided here, correspond to the following items as entered in the hospital point-of-sale (POS) system: Bottled Water = Aquafina B/Water 591 mL; for Milk sizes SM = 237 mL and LG = 473 mL; Loaf Cake Slice = Loaf; Rice Krispie Square = Rice Krispie 50 g
³Apple/orange refers to whole apples OR whole oranges sold, as the coding for this ready-to-eat whole fruit item is the same in the point-of-sale system and therefore we are unable to distinguish post-hoc which are apples and which are oranges

ISSN: 1479-5868