Point-of-purchase health information encourages customers to purchase vegetables: objective analysis by using a point-of-sales system
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Yoshiko Ogawa Naohito Tanabe Akiko Honda Tomoko Azuma Nao Seki Tsubasa Suzuki Hiroshi Suzuki
- چاپ و سال / کشور: 2010
Description
Objectives Point-of-purchase (POP) information at food stores could help promote healthy dietary habits. However, it has been difficult to evaluate the effects of such intervention on customers’ behavior. We objectively evaluated the usefulness of POP health information for vegetables in the modification of customers’ purchasing behavior by using the database of a point-of-sales (POS) system. Methods Two supermarket stores belonging to the same chain were assigned as the intervention store (store I) and control store (store C). POP health information for vegetables was presented in store I for 60 days. The percent increase in daily sales of vegetables over the sales on the same date of the previous year was compared between the stores by using the database of the POS system, adjusting for the change in monthly visitors from the previous year (adjusted Dsales). Results The adjusted Dsales significantly increased during the intervention period (Spearman’s q = 0.258, P for trend = 0.006) at store I but did not increase at store C (q = -0.037, P for trend = 0.728). The growth of the mean adjusted Dsales of total vegetables from 30 days before the intervention period through the latter half of the intervention period was estimated to be greater at store I than at store C by 18.7 percentage points (95% confidence interval 1.6–35.9). Conclusions Health-related POP information for vegetables in supermarkets can encourage customers to purchase and, probably, consume vegetables.
Environ Health Prev Med (2011) 16:239–246 DOI 10.1007/s12199-010-0192-8 Received: 6 April 2010 / Accepted: 1 November 2010 / Published online: 10 December 2010
