Food, Nutrition and Health, Faculty of Land & Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4; Department of Biology, Kwantlen Polytechnic University, Surrey, BC, Canada V3W 2M8.
Department of Urban Studies and Planning, Massachusetts Institute of Technology, Cambridge 02139, MA, USA.
Health Place. 2019 Jul;58:102066. doi: 10.1016/j.healthplace.2018.12.007. Epub 2019 Jan 11.
Recent policy initiatives call for restricting food marketing to children, yet little is known about children's current exposure to outdoor advertisements. This paper describes the prevalence and characteristics of food- or beverage-related advertisements surrounding 25 public elementary and secondary schools in Vancouver, Canada and assesses whether the informational food environment differs by neighbourhood or school characteristics. All but four schools had at least one food- or beverage-related advertisement within 400 m (median: 18, range: 0-96) and approximately 90% of food or beverage advertisements were for items not recommended for frequent consumption by provincial school food guidelines. After controlling for commercial density, secondary schools were associated with more outdoor food and beverage advertisements overall in comparison with elementary schools. The presence of an additional limited-service food outlet within 400 m was associated with a 7% increase in the number of overall advertisements (p < 0.001) while an additional grocery store was associated with fewer advertisements (IRR: 0.69, p < 0.001), controlling for commercial density. Findings suggest the need to consider the informational food environment as part of broader assessments of the school and retail food environments.
最近的政策倡议呼吁限制向儿童推销食品，但对于儿童目前接触户外广告的情况知之甚少。本文描述了加拿大温哥华 25 所公立小学和中学周围食品或饮料相关广告的流行程度和特征，并评估了信息食品环境是否因社区或学校特征而异。除了四所学校外，所有学校周围 400 米范围内都至少有一个食品或饮料相关广告（中位数：18，范围：0-96），并且大约 90%的食品或饮料广告都是省学校食品指南不建议经常食用的食品。在控制商业密度后，与小学相比，中学整体的户外食品和饮料广告数量更多。在 400 米范围内增加一个额外的有限服务食品店与广告总数增加 7%有关（p<0.001），而增加一个杂货店与广告数量减少有关（IRR：0.69，p<0.001），这与商业密度有关。研究结果表明，需要将信息食品环境作为对学校和零售食品环境进行更广泛评估的一部分。
