From the Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN 55454, USA.
J Occup Environ Med. 2010 Jan;52 Suppl 1(Suppl 1):S29-33. doi: 10.1097/JOM.0b013e3181c5c476.
To evaluate the effects of lowering prices and increasing availability on sales of healthy foods and beverages from 33 vending machines in 4 bus garages as part of a multicomponent worksite obesity prevention intervention.
Availability of healthy items was increased to 50% and prices were lowered at least 10% in the vending machines in two metropolitan bus garages for an 18-month period. Two control garages offered vending choices at usual availability and prices. Sales data were collected monthly from each of the vending machines at the four garages.
Increases in availability to 50% and price reductions of an average of 31% resulted in 10% to 42% higher sales of the healthy items. Employees were mostly price responsive for snack purchases.
Greater availability and lower prices on targeted food and beverage items from vending machines was associated with greater purchases of these items over an 18-month period. Efforts to promote healthful food purchases in worksite settings should incorporate these two strategies.
评估降价和增加供应对 33 台自动售货机销售健康食品和饮料的影响，这些售货机位于 4 个公共汽车站车库内，是多成分工作场所肥胖预防干预措施的一部分。
在为期 18 个月的时间里，在两个大都市公共汽车站车库中的自动售货机中，将健康物品的供应增加到 50%，并将价格降低至少 10%。两个对照车库以通常的供应和价格提供自动售货选择。从四个车库中的每台自动售货机每月收集销售数据。
供应增加到 50%，价格平均降低 31%，导致健康食品的销售额增加了 10%至 42%。员工对零食购买的反应主要是价格。
自动售货机上针对食品和饮料项目的更高供应和更低价格与这些项目在 18 个月期间的更多购买有关。在工作场所环境中促进健康食品购买的努力应包含这两个策略。
