Van Hulst Andraea, Barnett Tracie A, Déry Véronique, Côté Geneviève, Colin Christine
Département de médecine sociale et préventive, Université de Montréal, Montréal, QC.
Can J Diet Pract Res. 2013 Spring;74(1):28-34. doi: 10.3148/74.1.2013.28.
Taking advantage of a natural experiment made possible by the placement of health-promoting vending machines (HPVMs), we evaluated the impact of the intervention on consumers' attitudes toward and practices with vending machines in a pediatric hospital.
Vending machines offering healthy snacks, meals, and beverages were developed to replace four vending machines offering the usual high-energy, low-nutrition fare. A pre- and post-intervention evaluation design was used; data were collected through exit surveys and six-week follow-up telephone surveys among potential vending machine users before (n=293) and after (n=226) placement of HPVMs. Chi-2 statistics were used to compare pre- and post-intervention participants' responses.
More than 90% of pre- and post-intervention participants were satisfied with their purchase. Post-intervention participants were more likely to state that nutritional content and appropriateness of portion size were elements that influenced their purchase. Overall, post-intervention participants were more likely than pre-intervention participants to perceive as healthy the options offered by the hospital vending machines. Thirty-three percent of post-intervention participants recalled two or more sources of information integrated in the HPVM concept. No differences were found between pre- and post-intervention participants' readiness to adopt healthy diets.
While the HPVM project had challenges as well as strengths, vending machines offering healthy snacks are feasible in hospital settings.
利用因设置促进健康自动售货机（HPVMs）而得以开展的一项自然实验，我们评估了该干预措施对一家儿科医院消费者对自动售货机的态度及使用习惯的影响。
开发了提供健康零食、餐食和饮料的自动售货机，以取代四台提供常见高能量、低营养食品的自动售货机。采用干预前和干预后的评估设计；通过在HPVMs放置前（n = 293）和放置后（n = 226）对潜在自动售货机用户进行的出口调查和为期六周的随访电话调查收集数据。使用卡方统计量比较干预前后参与者的回答。
干预前和干预后的参与者中超过90%对其购买的商品感到满意。干预后的参与者更有可能表示营养成分和份量是否合适是影响他们购买的因素。总体而言，干预后的参与者比干预前的参与者更有可能认为医院自动售货机提供的商品是健康的。33%的干预后参与者回忆起HPVM概念中整合的两种或更多信息来源。干预前后参与者在采用健康饮食的意愿方面没有差异。
虽然HPVM项目有挑战也有优势，但在医院环境中提供健康零食的自动售货机是可行的。
