Patsch Amy J, Smith Jennifer Howard, Liebert Mina L, Behrens Timothy K, Charles Tami
Public Health Partners, LLC, Englewood, CO, USA
Applied Research Solutions, Inc, Colorado Springs, CO, USA.
Am J Health Promot. 2016 Jul;30(6):425-32. doi: 10.1177/0890117116658237.
To evaluate the impact of a health-promoting price intervention on food sales and profit.
Nonrandomized evaluation study.
Two hospital cafeterias.
Hospital employees (2800) were the priority population.
During baseline phase, healthy versions of existing unhealthy items were introduced. The intervention phase included marketing and price incentives/disincentives for healthy and unhealthy items, with a 35% price differential.
Average and proportional change in sales and impact on financial outcomes were assessed.
Two-way factorial analyses of variance and two-proportion Z-score tests were run to assess change in sales. Independent samples t tests were used to test for changes in profit.
Significant impact was demonstrated on all burger sales in the desired direction during intervention (P < .001). Most notably, the average weekly turkey burger sales at Penrose Hospital (PH) increased 13-fold (10.85-145.59) and became the majority of the market share (51.8%, P < .001). For salads, significant interaction between phase and food type was found at St. Francis Medical Center (SFMC) (P = .002) but not at PH (P = .304). Healthy PH salads were popular at baseline and intervention, comprising the majority of the market share throughout the entire study (68.4%-70.2%, respectively, P = .238). Cafeteria gross sales and burger profit (P < .001) increased at both cafeterias.
Incentivizing consumers through price interventions changed hospital cafeteria food sales in the desired direction while improving the bottom line.
评估促进健康的价格干预对食品销售和利润的影响。
非随机评估研究。
两家医院食堂。
医院员工（2800名）为优先人群。
在基线阶段，推出了现有不健康食品的健康版本。干预阶段包括对健康和不健康食品的营销以及价格激励/抑制措施，价格差异为35%。
评估销售的平均变化和比例变化以及对财务结果的影响。
进行双向析因方差分析和双比例Z检验以评估销售变化。使用独立样本t检验来检验利润变化。
在干预期间，所有汉堡的销售均朝着预期方向产生了显著影响（P < .001）。最显著的是，彭罗斯医院（PH）的火鸡汉堡平均每周销量增长了13倍（从10.85增至145.59），并占据了大部分市场份额（51.8%，P < .001）。对于沙拉，在圣弗朗西斯医疗中心（SFMC）发现阶段与食品类型之间存在显著交互作用（P = .002），而在彭罗斯医院则未发现（P = .304）。彭罗斯医院的健康沙拉在基线和干预阶段都很受欢迎，在整个研究过程中均占据大部分市场份额（分别为68.4% - 70.2%，P = .238）。两家食堂的毛销售额和汉堡利润均有所增加（P < .001）。
通过价格干预激励消费者，使医院食堂食品销售朝着预期方向变化，同时提高了利润。
