Estimating the lagged effect of price discounting: a time-series study on sugar sweetened beverage purchasing in a supermarket.

ABSTRACT:

Background

Price discount is an unregulated obesogenic environmental risk factor for the purchasing of unhealthy food, including Sugar Sweetened Beverages (SSB). Sales of price discounted food items are known to increase during the period of discounting. However, the presence and extent of the lagged effect of discounting, a sustained level of sales after discounting ends, is previously unaccounted for. We investigated the presence of the lagged effect of discounting on the sales of five SSB categories, which are soda, fruit juice, sport and energy drink, sugar-sweetened coffee and tea, and sugar-sweetened drinkable yogurt.

Methods

We fitted distributed lag models to weekly volume-standardized sales and percent discounting generated by a supermarket in Montreal, Canada betwe

SUBMITTER: Mamiya H 

PROVIDER: S-EPMC9356513 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature