文章基本信息

标题：A pricing strategy to promote low-fat snack choices through vending machines.
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作者：S A French ; R W Jeffery ; M Story 等
期刊名称：American journal of public health
印刷版ISSN：0090-0036
出版年度：1997
卷号：87
期号：5
页码：849-851
出版社：American Public Health Association
摘要：OBJECTIVES: This study examined the role of price on purchases of low-fat snacks from vending machines. METHODS: Sales of low-fat and regular snacks were monitored in nine vending machines during a 4-week baseline, a 3-week intervention in which prices of low-fat snacks were reduced 50%, and 3 weeks postintervention. RESULTS: The proportion of low-fat snacks purchased was 25.7%, 45.8%, and 22.8% in the three periods, respectively. Total snack purchases did not vary by period. CONCLUSIONS: Reducing relative prices may be effective in promoting lower-fat food choices in the population. Vending machines may be a feasible method for implementing such nutrition interventions.