Rideout Karen, Levy-Milne Ryna, Martin Carla, Ostry Aleck S
Department of Health Care and Epidemiology, University of British Columbia, Vancouver, BC.
Can J Public Health. 2007 Jul-Aug;98(4):246-50. doi: 10.1007/BF03405396.
The purpose of this study was to determine the number and types of different food sales outlets, the types of foods offered for sale in all school food outlets, and the extent of nutrition policy implementation in schools in British Columbia. We also directly measured the number and types of snack foods available for sale in each vending machine at each school.
Based on a thorough literature review and guided by an expert panel of nutritionists, we developed an instrument to measure the quantity and types of foods offered for sale in vending machines, the types of food for sale in all school food outlets, and the extent of nutrition policy development.
The survey response rate was approximately 70%. Approximately 60% of surveyed schools had a permanent food sales outlet. Snack and beverage vending machines were most common in secondary schools, while tuck shops and food-based fundraisers were more common in elementary schools. While few snack vending machines were present in elementary schools, tuck shops stocked items commonly found in snack machines. Approximately 25% of schools had a formal group responsible for nutrition. These schools were more likely to have nutrition policies in place.
"Junk" foods were widely available in elementary, middle, and secondary schools through a variety of outlets. Although snack machines are virtually absent in elementary schools, tuck shops and school fundraisers sell foods usually found in snack machines, largely cancelling the positive effect of the absence of snack machines in these schools. Schools with a group responsible for nutrition appear to have a positive impact on nutrition policy implementation.
本研究旨在确定不列颠哥伦比亚省不同食品销售点的数量和类型、所有学校食品销售点所售食品的种类,以及学校营养政策的实施程度。我们还直接测量了每所学校每个自动售货机中可供销售的休闲食品的数量和类型。
在全面的文献综述基础上,并在营养学家专家小组的指导下,我们开发了一种工具,用于测量自动售货机中所售食品的数量和类型、所有学校食品销售点所售食品的种类,以及营养政策的制定程度。
调查回复率约为70%。约60%的被调查学校设有固定的食品销售点。零食和饮料自动售货机在中学最为常见,而小卖部和以食品为基础的筹款活动在小学更为常见。虽然小学里很少有零食自动售货机,但小卖部储备了自动售货机中常见的商品。约25%的学校有一个负责营养的正式团体。这些学校更有可能制定了营养政策。
通过各种销售点,“垃圾”食品在小学、初中和高中广泛供应。虽然小学里几乎没有零食自动售货机,但小卖部和学校筹款活动出售通常在自动售货机中能找到的食品,很大程度上抵消了这些学校没有零食自动售货机的积极影响。有负责营养团体的学校似乎对营养政策的实施有积极影响。