Cárdenas María Kathia, Benziger Catherine P, Pillay Timesh D, Miranda J Jaime
1CRONICAS Center of Excellence in Chronic Diseases,Universidad Peruana Cayetano Heredia,Av. Armendariz 497,Miraflores,Lima-18,Peru.
2Department of Cardiology,University of Washington,Seattle,WA,USA.
Public Health Nutr. 2015 Oct;18(15):2742-9. doi: 10.1017/S1368980014002730. Epub 2014 Dec 1.
To determine the effect of increasing fruit visibility, adding information and lowering price on fruit purchasing at a university cafeteria in Lima, Peru.
Quasi-experimental pilot study of a three-phase stepped intervention. In Phase 1, fruit was displayed >3 m from the point of purchase with no additional information. Phase 2 consisted in displaying the fruit near the point of purchase with added health and price information. Phase 3 added a 33% price reduction. The duration of each phase was 3 weeks and phases were separated by 2-week breaks. Primary outcomes were total pieces of fruit and number of meals sold daily.
A university cafeteria in Lima, Peru.
Approximately 150 people, students and non-student adults, who purchased food daily. Twelve students participated in post-intervention interviews.
Fruit purchasing doubled from Phase 1 to Phase 3 (P<0·01) and remained significant after adjusting for the number of meals sold daily (P<0·05). There was no evidence of a difference in fruit sold between the other phases. Females purchased 100% of the fruit in Phase 1, 82% in Phase 2 and 67% in Phase 3 (P<0·01). Males increased their purchasing significantly between Phase 1 and 3 (P<0·01). Non-student adults purchased more fruit with each phase (P<0·05) whereas students did not. Qualitatively, the most common reason for not purchasing fruit was a marked preference to buy unhealthy snack foods.
Promoting fruit consumption by product placement close to the point of purchase, adding health information and price reduction had a positive effect on fruit purchasing in a university cafeteria, especially in males and non-student adults.
确定提高水果可见度、增加信息以及降低价格对秘鲁利马一所大学食堂水果购买量的影响。
一项关于三阶段逐步干预的准实验性试点研究。在第一阶段，水果展示在距离购买点3米以外，且没有额外信息。第二阶段是将水果展示在购买点附近，并添加健康和价格信息。第三阶段则是降价33%。每个阶段持续3周，各阶段之间间隔2周。主要结果是水果的总销量和每日售出的餐数。
秘鲁利马的一所大学食堂。
约150名每天购买食物的人，包括学生和非学生成年人。12名学生参与了干预后的访谈。
从第一阶段到第三阶段，水果购买量翻倍（P<0.01），在对每日售出餐数进行调整后仍具有显著性（P<0.05）。没有证据表明其他阶段之间水果销量存在差异。在第一阶段，女性购买了100%的水果，第二阶段为82%，第三阶段为67%（P<0.01）。男性在第一阶段和第三阶段之间的购买量显著增加（P<0.01）。非学生成年人在每个阶段购买的水果都更多（P<0.05），而学生则没有。定性分析显示，不购买水果的最常见原因是明显偏好购买不健康的零食。
通过将产品放置在靠近购买点、添加健康信息和降价来促进水果消费，对大学食堂的水果购买量有积极影响，尤其是对男性和非学生成年人。
